Launching a mobile application or website involves much more than software development. Once users can create accounts, purchase products, subscribe to services, upload content, communicate with other users or provide personal information, a legal relationship begins to develop between the platform operator and its users.

This raises an important question for startups operating in Turkey:

Is it legally mandatory to prepare a User Agreement for a mobile application or website?

The short answer is:

There is no general rule under Turkish law requiring every website or every mobile application to contain a document specifically titled “User Agreement” or “Terms of Use.”

However, this does not mean that an online business can operate without legal documentation.

Depending on the nature of the platform, Turkish legislation may require the operator to provide users with specific contractual terms, pre-contractual information, consumer disclosures, subscription conditions, electronic commerce information and personal data notices.

In some business models, therefore, having properly structured contractual documentation is effectively indispensable.

For example, the legal requirements applicable to:

• a simple corporate information website,
• a free social networking application,
• an e-commerce website,
• a subscription-based SaaS platform,
• an online marketplace,
• a mobile gaming application,
• and a digital content platform

are not necessarily the same.

The correct legal approach is therefore not to ask only:

“Is a User Agreement mandatory?”

The more useful questions are:

“What does the application do?”

“What legal relationship is established with the user?”

“Does the user pay money?”

“Is the user a consumer?”

“Is a subscription created?”

“Are personal data processed?”

“Can users upload content?”

“Does the platform act as an intermediary between buyers and sellers?”

The answers determine which documents and contractual mechanisms are required.

This article explains whether a User Agreement for a mobile application or website is mandatory under Turkish law, when Terms of Use become necessary, how consumer and e-commerce rules apply, what provisions should be included and which mistakes technology startups should avoid.

What Is a User Agreement?

A User Agreement is a contract governing the relationship between the operator of a website, mobile application or digital platform and the person using that service.

It may also be called:

• Terms of Use,
• Terms and Conditions,
• Membership Agreement,
• Platform Agreement,
• End User Agreement,
• SaaS Agreement,
• Customer Agreement,
• Marketplace User Agreement,
• or Service Agreement.

The title is less important than the legal content.

For example, an application may call its document “Terms of Service”, while another platform calls essentially the same document a “User Agreement”.

The real legal question is what rights and obligations the document creates.

A properly drafted User Agreement may determine:

• who may use the platform;
• how accounts are created;
• what services are provided;
• prohibited conduct;
• payment obligations;
• subscription rules;
• intellectual property rights;
• user-generated content;
• account suspension;
• termination;
• liability;
• dispute resolution;
• and other important aspects of the digital relationship.

Is a User Agreement Mandatory for Every Website?

No.

Consider a simple law firm website containing only:

• information about the firm;
• articles;
• office address;
• telephone number;
• and professional biographies.

If no membership system exists, no product or service is purchased online and no significant interactive functionality is offered, there may be no need for a comprehensive contractual User Agreement merely for reading the website.

However, this does not mean the website has no legal obligations.

For example, if personal data are processed through:

• contact forms,
• newsletter subscriptions,
• cookies,
• analytics,
• IP-address logging,
• appointment forms,
• or other tracking technologies,

data protection obligations may arise.

Similarly, where the website constitutes an electronic commerce environment, disclosure obligations under electronic commerce legislation may become relevant.

Therefore:

“No User Agreement required” does not mean “no legal texts required.”

When Does a User Agreement Become Particularly Important?

A User Agreement becomes much more important where users can:

• register for an account;
• create a profile;
• purchase goods or services;
• subscribe to paid services;
• upload photographs, text or videos;
• communicate with other users;
• create listings;
• sell products;
• make reservations;
• access digital content;
• purchase virtual products;
• use software tools;
• receive professional services;
• or participate in a marketplace.

The more complex the platform’s functionality becomes, the greater the need to define the contractual relationship.

For many technology startups, operating without a User Agreement can create serious uncertainty over questions that arise only after a dispute begins.

Turkish Electronic Commerce Law Creates Mandatory Information Obligations

Law No. 6563 on the Regulation of Electronic Commerce imposes specific information obligations when contracts are concluded by electronic means.

Article 3 requires a service provider, before concluding an electronic contract, to provide information including:

• identifying information accessible to recipients;
• technical steps required to establish the contract;
• whether the contract will be stored after conclusion and whether the recipient will later be able to access it;
• technical tools for detecting and correcting data-entry errors;
• applicable privacy rules;
• and available alternative dispute-resolution mechanisms, if any.

The service provider must also enable the recipient to store the contractual provisions and general terms and conditions.

This legislation demonstrates an important point.

Turkish law may not require every online business to publish a document specifically called “User Agreement”, but where contracts are formed electronically, the operator cannot ignore mandatory information and contracting requirements.

Electronic Commerce Websites Must Also Display Business Information

Electronic commerce businesses have separate identification obligations.

The relevant e-commerce regulation requires service providers conducting activity through their own electronic commerce environment to make specified information available, including contact details and, depending on their legal status:

• trade name;
• MERSİS number;
• registered office;
• KEP address;
• email address;
• telephone number;
• registered trademark or business name where applicable;
• and other legally required identifying information.

The exact disclosure depends on whether the service provider is a merchant, tradesperson or another type of operator.

A startup should therefore avoid operating an e-commerce website under nothing more than a brand name with no clear indication of the legal entity providing the service.

What If the Mobile Application or Website Sells Products to Consumers?

The legal position becomes much stricter.

Where a consumer purchases goods or services online, the transaction will frequently qualify as a distance contract under Article 48 of Law No. 6502 on Consumer Protection and the Distance Contracts Regulation.

The Ministry of Trade describes a distance contract as a contract concluded without the simultaneous physical presence of the seller or provider and consumer through a system organised for distance marketing, using remote communication tools up to and including the moment the contract is concluded.

This can include transactions completed through:

• websites,
• mobile applications,
• online marketplaces,
• and other remote communication systems.

In such cases, providing a basic “User Agreement” is not enough.

The business must comply with the mandatory consumer information rules.

Mandatory Pre-Contractual Information for Online Consumer Transactions

Before a distance contract is concluded, consumers must be informed about a detailed range of matters.

The Distance Contracts Regulation requires information concerning matters such as:

• essential characteristics of the goods or services;
• identity of the seller or service provider;
• MERSİS or tax information where applicable;
• contact details;
• total price including taxes;
• additional delivery or similar costs;
• payment arrangements;
• delivery or performance;
• complaint-resolution methods;
• conditions and procedure for exercising the right of withdrawal;
• circumstances where the right of withdrawal does not apply;
• technical protection measures affecting digital content;
• hardware or software compatibility of digital content where relevant;
• and available consumer dispute-resolution channels.

These disclosures form part of the distance-contract structure.

Therefore, an e-commerce startup cannot simply prepare a generic Terms of Use page and assume that consumer law has been satisfied.

The Information Must Be Presented Before Payment

The timing of disclosure is also regulated.

Where a distance contract is concluded through the internet, certain essential information must be displayed clearly immediately before the consumer assumes a payment obligation.

The regulation also requires consumers to be informed clearly that confirming the order creates a payment obligation.

This has direct consequences for interface design.

A legally compliant checkout process should therefore be coordinated with the legal documents.

A beautifully drafted distance sales agreement hidden at the bottom of a website cannot compensate for a checkout interface that does not provide legally required information at the correct stage.

Failure to Obtain Confirmation Can Affect Contract Formation

The Distance Contracts Regulation goes further.

The seller, provider and, where applicable, intermediary service provider must enable the consumer to confirm that the required pre-contractual information has been obtained through a method appropriate to the communication channel.

If this confirmation requirement is not satisfied, the regulation states that the contract is considered not to have been concluded.

This demonstrates why online contracting should not be treated solely as a drafting exercise.

Legal compliance has at least three dimensions:

1. the correct legal text;
2. the correct user-interface placement;
3. sufficient electronic records proving what the user saw and accepted.

What About Subscription-Based Mobile Applications?

Subscription services require particular attention.

Many modern applications operate using recurring subscription models.

Examples include:

• SaaS applications;
• fitness applications;
• educational platforms;
• premium content services;
• digital membership platforms;
• productivity applications;
• and other recurring services.

Where the relationship falls within the scope of the Turkish Subscription Contracts Regulation, an actual subscription contract must be established.

The regulation provides that sellers or service providers must conclude a subscription contract with the consumer and that a copy of a written or distance subscription contract must be provided to the consumer on paper or through a durable data medium.

It also specifies mandatory contractual content and requires the agreement to be drafted in understandable, clear, simple and readable language.

Accordingly, for certain subscription services, the issue is no longer merely whether having “Terms of Use” is recommended.

A legally compliant subscription contract itself may be mandatory.

User Agreement and Subscription Agreement Are Not Necessarily the Same Document

A startup should distinguish the platform’s general User Agreement from a specific Subscription Agreement.

The User Agreement may regulate:

• account creation;
• permitted use;
• intellectual property;
• content rules;
• suspension;
• platform functionality.

The Subscription Agreement may regulate:

• subscription period;
• service;
• fees;
• billing period;
• renewal;
• termination;
• cancellation;
• refunds;
• and legally required consumer information.

The documents may sometimes be integrated where legally appropriate.

However, the startup should ensure that all mandatory subscription terms are present rather than assuming a generic Terms of Use automatically satisfies the Subscription Contracts Regulation.

Privacy Notice and User Agreement Are Different Documents

This is one of the most important distinctions for mobile applications.

A User Agreement creates contractual rules governing use of the service.

A KVKK Privacy Notice, or Aydınlatma Metni, performs a different function.

Article 10 of Law No. 6698 requires the data controller to inform individuals, when personal data are collected, about matters including:

• identity of the data controller and representative where applicable;
• purposes of processing;
• recipients and purposes of transfers;
• collection method;
• legal basis;
• and the data subject’s statutory rights.

The Personal Data Protection Authority emphasises that this information obligation applies regardless of whether processing is based on explicit consent or another lawful processing condition.

Therefore, inserting a sentence into the User Agreement saying:

“By using the application, you accept our processing of all personal data.”

does not replace the statutory privacy notice.

Privacy Notice and Explicit Consent Should Not Be Bundled Together

This issue has become especially important following the Personal Data Protection Board’s 18 February 2026 Principle Decision.

The Authority emphasised that the privacy notice and explicit consent mechanism must be structured separately and that informing the data subject is not itself dependent on obtaining consent.

This has direct implications for application onboarding.

A startup should be cautious about using one mandatory checkbox stating:

“I accept the User Agreement, Privacy Notice, KVKK Policy, marketing communications and all processing activities.”

Different legal mechanisms serve different functions.

Depending on the processing activity, the application may instead require separate treatment of:

• User Agreement acceptance;
• acknowledgement or presentation of the privacy notice;
• explicit consent where legally required;
• commercial electronic communication consent;
• and cookie or tracking preferences.

Bundling everything into a single checkbox may create compliance problems.

A General Privacy Policy Does Not Necessarily Satisfy the KVKK Information Obligation

The Turkish Personal Data Protection Authority has also warned against treating a generic Privacy Policy as though it were automatically a compliant statutory privacy notice.

The Authority states that broad privacy or data-processing policies that are not specific to the relevant processing activity should not simply be used as Article 10 notices. Information must be clear, understandable and specific to the actual processing.

The Authority has also addressed an online game in which users were presented with registration notices, privacy policies and a User Agreement, emphasising that the texts must be consistent with the Turkish data-protection requirements applicable to the actual data controller.

For mobile application operators, this means legal documentation should reflect the actual data flow of the application.

Does Every Cookie Require Consent?

Not necessarily.

Cookie compliance requires a separate analysis based on:

• the purpose of the cookie;
• whether personal data are processed;
• the legal basis relied upon;
• necessity for the requested service;
• tracking or advertising purposes;
• and the applicable KVKK framework.

Therefore, startups should not assume either that:

“Every cookie requires consent”

or

“Putting cookies in the User Agreement is sufficient.”

Tracking technology should be addressed through a separate cookie and personal-data analysis.

Why Does a Free Application Still Need a User Agreement?

A common misconception is:

“Our application is free, so there is no contract.”

That is not necessarily correct.

A free application can still create important legal relationships.

For example, users may be permitted to:

• create accounts;
• upload photographs;
• publish comments;
• communicate with others;
• create profiles;
• use software tools;
• save documents;
• or access proprietary databases.

The platform should determine:

• who owns user-generated content;
• what licence users grant to the platform;
• what conduct is prohibited;
• when accounts may be suspended;
• what happens to content after termination;
• and how intellectual property complaints are handled.

Without a User Agreement, these questions may remain uncertain until litigation begins.

User-Generated Content Makes Terms of Use Particularly Important

Social platforms, marketplaces and community applications often allow users to upload:

• photographs;
• videos;
• text;
• product listings;
• reviews;
• documents;
• graphics;
• or other content.

The User Agreement should address:

• ownership of user content;
• licence granted to the platform;
• whether content may be displayed;
• whether content may be technically reproduced;
• moderation;
• prohibited content;
• infringement complaints;
• removal;
• and termination.

The platform should not casually state:

“Everything users upload becomes our property.”

Such a provision may be legally excessive, unnecessary and potentially problematic.

A properly structured licence will often be more appropriate.

What Should a Marketplace User Agreement Include?

Online marketplaces require particularly detailed contractual architecture because there may be several separate legal relationships:

Platform ↔ Buyer

Platform ↔ Seller

Seller ↔ Buyer

The startup must determine whether it:

• sells products itself;
• merely intermediates;
• processes payment;
• provides logistics;
• controls product listings;
• handles refunds;
• or combines several of these functions.

The legal documents should clearly identify who is responsible for:

• the product;
• delivery;
• payment;
• invoicing;
• returns;
• defects;
• customer service;
• and regulatory compliance.

The Ministry of Trade’s e-commerce framework imposes extensive obligations on electronic commerce intermediary service providers and electronic commerce service providers, with the applicable requirements depending partly on the platform’s structure and scale. The Ministry maintains the current electronic-commerce legislation and continues to update applicable monetary thresholds.

A User Agreement Cannot Eliminate Mandatory Consumer Rights

Startups sometimes attempt to use extremely broad liability clauses.

For example:

“The platform shall under no circumstances be liable for any problem, loss, defective service, refund or consumer claim.”

A clause of this type cannot simply erase mandatory Turkish consumer protection.

The Ministry of Trade explains that pre-drafted consumer contract terms may be reviewed as unfair terms and that ambiguous provisions are interpreted in favour of the consumer. Unfair terms are not binding on consumers.

Therefore, the purpose of a User Agreement should not be to eliminate every possible company responsibility.

The objective is to define the relationship within legal limits.

What Is an Unfair Contract Term?

An unfair term is broadly a pre-drafted contractual provision that creates an imbalance contrary to good faith to the detriment of the consumer.

For digital platforms, potential problems may arise from clauses allowing the business to:

• change every contractual term whenever it wishes;
• terminate paid services arbitrarily without refund;
• exclude all statutory liability;
• impose disproportionate penalties;
• prevent consumers from exercising mandatory rights;
• or make the consumer permanently bound while leaving the company free to perform only when it chooses.

A longer agreement is therefore not necessarily a safer agreement.

Twenty pages of aggressive clauses can create more legal risk than a shorter, balanced contract.

Can the Startup Change the User Agreement Unilaterally?

This is a frequent issue.

Many Terms of Use contain wording such as:

“We may change these terms at any time without notice, and continued use means acceptance.”

This should not be treated as universally enforceable.

The ability to modify an ongoing contract depends on:

• the nature of the relationship;
• consumer status;
• contractual language;
• the importance of the modification;
• mandatory legislation;
• and how users are notified.

Material changes concerning price, subscription duration, service scope or consumer rights may require specific legal treatment.

The safest strategy is to establish a transparent amendment procedure and preserve evidence showing when updated terms were communicated.

Clickwrap Is Generally Better Than Merely Publishing Terms

From an evidentiary perspective, there is a major difference between:

Browsewrap

and

Clickwrap.

Browsewrap

The Terms of Use are merely accessible through a footer link.

The user is considered bound simply by using the site.

Clickwrap

The user takes an affirmative action such as checking a box stating:

“I have read and agree to the User Agreement.”

For important contractual relationships, clickwrap provides substantially stronger evidence that the terms were presented and accepted.

This is particularly useful when users:

• register accounts;
• purchase services;
• subscribe;
• upload content;
• or access professional software.

The Acceptance Box Should Not Be Pre-Ticked

For meaningful contractual acceptance, the user should take an affirmative action.

A pre-selected checkbox can create evidentiary and consumer-law problems.

A better interface requires the user to actively select the relevant box before completing registration or the transaction.

The agreement should also be directly accessible from that screen.

For example:

☐ I have read and accept the User Agreement.

The words User Agreement can link directly to the current text.

The Startup Should Preserve Evidence of Acceptance

Having a checkbox is not enough if the company cannot later prove what happened.

The platform should retain appropriate records showing:

• user identity or account information;
• date and time of acceptance;
• version of the agreement;
• IP or technical records where legally appropriate;
• method of acceptance;
• and subsequent acceptance of material revisions.

Suppose a dispute begins in 2028.

The company says:

“The user agreed to our Terms.”

The user responds:

“Which version?”

If the startup cannot produce the version in force at the time of acceptance, its contractual position becomes weaker.

Version control should therefore form part of legal compliance.

Do Terms Need to Be Available After Acceptance?

Electronic commerce legislation specifically addresses access to contractual provisions and general transaction conditions.

Service providers are required to enable recipients to store contractual provisions and general terms. Article 3 of Law No. 6563 also requires information about whether the agreement will be stored and whether the recipient can later access it.

For consumer contracts, durable-medium requirements may also apply depending on the transaction.

Accordingly, platforms should avoid designing systems where contractual terms disappear immediately after clicking “Accept”.

What Clauses Should a Mobile Application User Agreement Contain?

The exact structure depends on the application, but a comprehensive agreement may address the following issues.

Identity of the Service Provider

The legal entity operating the application should be clear.

Scope of Service

What exactly does the application provide?

Eligibility

Who may register?

Are there minimum-age or sector-specific restrictions?

Account Registration

What information must users provide?

Account Security

Who is responsible for credentials and unauthorised account activity?

Prohibited Activities

The agreement may prohibit:

• fraud;
• hacking;
• scraping;
• unauthorised access;
• malware;
• harassment;
• impersonation;
• copyright infringement;
• and unlawful content.

Intellectual Property

Who owns:

• software;
• interface;
• logos;
• databases;
• documentation;
• and platform content?

User Content

What rights remain with the user and what licence does the platform receive?

Payment

How are prices, taxes and payment methods determined?

Subscription

How are recurring payments and termination handled?

Refunds

What statutory and contractual refund mechanisms apply?

Right of Withdrawal

Where consumer law applies, the statutory right of withdrawal and exceptions must be handled correctly.

Suspension

When may an account be temporarily restricted?

Termination

When and how may either party terminate the relationship?

Service Availability

How are maintenance and outages handled?

Liability

What legally permissible limitations apply?

Third-Party Services

Does the application rely on external payment providers, maps, integrations or links?

Governing Law

Which law governs the agreement?

Dispute Resolution

Which legally permissible dispute mechanisms apply?

A generic Terms of Use template downloaded from another jurisdiction rarely answers these questions in a way adapted to the actual Turkish startup.

B2B SaaS Agreements Require a Different Approach

A startup selling software to businesses should not use the same document as a consumer mobile application.

A B2B SaaS agreement may need provisions concerning:

• user licences;
• authorised users;
• API limits;
• service levels;
• support;
• uptime;
• confidentiality;
• cybersecurity;
• business data;
• intellectual property;
• payment terms;
• late payment;
• limitation of liability;
• indemnification;
• data processing;
• termination;
• and enterprise integration.

Law No. 6563 also allows greater contractual flexibility where neither party is a consumer. For example, Article 3 permits non-consumer parties to agree differently concerning certain statutory pre-contractual information provisions.

Accordingly, identifying whether the service is B2C or B2B is fundamental.

App Store Terms Do Not Replace the Startup’s Own Contract

Publishing an application through Apple App Store or Google Play does not necessarily eliminate the need for the startup’s own User Agreement.

The app store terms primarily regulate relationships involving the platform operator, developer and distribution environment.

They do not necessarily address all issues between the startup and the end user.

The startup may still need its own terms concerning:

• application functionality;
• subscriptions;
• user content;
• prohibited use;
• intellectual property;
• account suspension;
• and service termination.

The app store agreement and startup User Agreement should therefore be considered separately.

A Website Disclaimer Is Not a Substitute for a User Agreement

A disclaimer might state:

“Information on this website is for informational purposes only.”

That can be useful in certain contexts.

However, a disclaimer does not regulate the full contractual relationship.

Similarly:

• a Privacy Policy is not a User Agreement;
• a Cookie Policy is not a User Agreement;
• a Distance Sales Agreement is not necessarily a complete platform User Agreement;
• and a KVKK Notice is not a User Agreement.

Each document has a different legal purpose.

What Documents May a Turkish Mobile Application or Website Need?

Depending on its activities, the legal documentation package may include:

• User Agreement / Terms of Use;
• Membership Agreement;
• Distance Sales Agreement;
• Pre-Contractual Information Form;
• Subscription Agreement;
• Marketplace Seller Agreement;
• Privacy Notice under KVKK;
• Explicit Consent Text where legally necessary;
• Cookie Notice or Cookie Policy;
• Commercial Electronic Communication Consent;
• Refund and Cancellation Policy;
• Intellectual Property Policy;
• Community Rules;
• and complaint procedures.

Not every startup needs every document.

The legal architecture should follow the actual business model.

What Happens If There Is No User Agreement?

The absence of a User Agreement does not necessarily mean that no legal relationship exists.

A contract may still arise under general principles of Turkish contract law through offer and acceptance.

Mandatory legislation may also apply regardless of whether written terms exist.

However, the platform loses the opportunity to define many important issues clearly.

For example:

A user uploads commercially valuable content.

Who may display it?

A customer misuses the API.

Can access be suspended?

A user scrapes the platform database.

What contractual restriction applies?

A customer demands that an account remain permanently active.

When can the company terminate service?

A user creates multiple fraudulent accounts.

What platform rules were breached?

A dispute arises concerning subscription renewal.

What exactly was agreed?

Without contractual documentation, these questions become harder to answer.

Administrative Penalties Can Also Arise

Failing to comply with consumer obligations is not merely a contractual risk.

The Ministry of Trade announced updated administrative penalties applicable from 1 January 2026.

For distance consumer contracts, violations concerning statutory consumer information and rights can result in administrative fines calculated per non-compliant transaction or contract. For 2026, the Ministry announced a TRY 3,973 penalty for specified violations in this category. It announced the same 2026 amount per relevant non-compliant contract or transaction for certain subscription-contract violations.

The precise sanction depends on the specific breach and legislation in force at the relevant time.

This is another reason startups should not treat their online legal documentation as a purely cosmetic website feature.

Common Mistakes in Mobile App and Website User Agreements

Several mistakes appear repeatedly.

Copying Terms From a Foreign Competitor

A US-based application may use legal concepts that do not operate in the same way in Turkey.

Using One Document for Everything

User Agreement, privacy notice, explicit consent and marketing permission are bundled together.

No Consumer-Law Analysis

The startup assumes its Terms override statutory rights.

No Evidence of Acceptance

Terms exist in the website footer but no reliable records show acceptance.

No Version Control

The agreement is changed repeatedly without historical copies.

Overly Broad Liability Exclusion

The business attempts to eliminate mandatory legal responsibility.

Unlimited Unilateral Amendment Rights

The startup reserves the right to change all terms without limits.

Poor Subscription Provisions

Cancellation, renewal and payment mechanisms are unclear.

No User-Generated Content Licence

The application depends on content uploaded by users but has no legal permission to display it.

No Intellectual Property Protection

Users are not informed about ownership of the platform’s software and content.

No Suspension Rules

The company blocks accounts without contractual criteria.

Privacy and Contracting Are Confused

Consent to Terms is incorrectly treated as consent for every personal-data processing activity.

Legal Checklist Before Launching a Mobile Application in Turkey

Before launch, a startup should ask:

1. Is registration required to use the application?
2. Is there a contractual relationship with the user?
3. Are users consumers or businesses?
4. Is any payment collected?
5. Is the transaction a distance contract?
6. Is a subscription created?
7. Are recurring payments used?
8. Is digital content supplied?
9. Can users upload content?
10. Can users communicate with each other?
11. Does the application act as a marketplace?
12. Does the application process personal data?
13. Is a KVKK privacy notice required?
14. Is explicit consent needed for any processing activity?
15. Are marketing messages sent?
16. Are cookies or tracking technologies used?
17. Is a User Agreement required for the business model?
18. Is a Distance Sales Agreement required?
19. Is pre-contractual information presented at the correct stage?
20. Is the payment obligation clearly shown before order confirmation?
21. Can the user store or access the contract?
22. Is contractual acceptance recorded?
23. Is the accepted version preserved?
24. Are consumer rights protected?
25. Is account suspension regulated?
26. Is user-generated content regulated?
27. Are intellectual property rights addressed?
28. Is subscription cancellation easy enough to comply with applicable law?
29. Are company identification and contact details displayed?
30. Are the documents available in a language users can understand?

If these questions cannot be answered, the application’s legal onboarding structure is likely incomplete.

Frequently Asked Questions About Mobile App User Agreements in Turkey

Is a User Agreement legally mandatory for every mobile application?

No general Turkish rule requires every mobile application to publish a document specifically titled User Agreement. However, the application’s functionality may create contractual and statutory obligations that make detailed terms necessary.

Does a free mobile application need Terms of Use?

It may. Free platforms can still require contractual rules concerning accounts, intellectual property, prohibited activities, user content and termination.

Does an e-commerce website need a contract?

Where consumers purchase goods or services online, distance-contract legislation generally imposes mandatory pre-contractual information and contracting obligations.

Is clicking “I Agree” legally useful?

Yes. An affirmative acceptance mechanism generally provides stronger evidence than merely placing Terms in the website footer. The platform should also preserve records showing which version was accepted.

Can the Privacy Policy be included inside the User Agreement?

Contractual terms and data-protection notices perform different legal functions. In particular, the KVKK information obligation should be satisfied in accordance with Article 10 and the Authority’s rules, and explicit consent mechanisms should be separated where consent is required.

Can a startup exclude all liability through Terms of Use?

No. Mandatory rules, especially consumer protection rules, cannot simply be eliminated through a pre-drafted User Agreement. Unfair terms may be non-binding.

Should a SaaS startup use the same Terms for companies and consumers?

Usually not. B2B and B2C relationships can be subject to materially different rules, particularly under consumer legislation.

Is a subscription contract mandatory?

Where the service falls within the Subscription Contracts Regulation, a subscription contract must be established and mandatory contractual content rules apply.

Conclusion: Is a User Agreement Mandatory for a Mobile Application or Website in Turkey?

There is no universal rule under Turkish law stating:

“Every website and every mobile application must contain a document titled User Agreement.”

The correct answer depends on the business model.

A purely informational website may not need a comprehensive Terms of Use contract merely because someone visits the website.

However, the situation changes rapidly when the platform allows users to:

• create accounts;
• purchase goods;
• obtain paid services;
• subscribe;
• upload content;
• use proprietary software;
• communicate with other users;
• or enter transactions with third parties.

In electronic commerce, Law No. 6563 imposes mandatory information requirements before electronic contracts are concluded and requires service providers to facilitate the storage of contractual provisions and general conditions.

Where a consumer purchases goods or services remotely, Law No. 6502 and the Distance Contracts Regulation impose much more detailed pre-contractual information obligations. The consumer must receive legally prescribed information, certain matters must be presented immediately before the payment obligation arises and the consumer must be enabled to confirm receipt of the preliminary information.

Where the business model involves qualifying subscriptions, the Subscription Contracts Regulation expressly requires a subscription contract and specifies mandatory contractual content.

If personal data are processed, the startup must separately comply with Law No. 6698. The Personal Data Protection Authority emphasises that the privacy information obligation exists independently from explicit consent and that generic privacy policies should not automatically be treated as sufficient Article 10 notices.

The distinction between these legal documents is therefore essential.

A User Agreement determines how the application or platform may be used.

A Distance Sales Agreement and preliminary information structure regulates an online consumer transaction.

A Subscription Agreement regulates recurring qualifying services.

A KVKK Privacy Notice explains personal-data processing.

An explicit consent mechanism, where legally required, obtains a specific voluntary consent.

A Cookie structure regulates relevant tracking technologies.

A commercial electronic communication mechanism addresses marketing communications.

These documents should not be mixed together indiscriminately.

For most commercial mobile applications and interactive startup platforms, preparing a properly drafted User Agreement is therefore highly advisable even where no statute uses the exact phrase “User Agreement is mandatory”.

More importantly, where legislation imposes specific contractual or disclosure obligations, the startup must satisfy those obligations regardless of what the document is called.

The safest question for a startup is consequently not:

“Do we legally have to put Terms of Use on the website?”

The correct legal analysis is:

“What contractual, consumer, e-commerce and data-protection obligations arise from the exact way our application works?”

Once this is determined, the legal documents should be designed together with the user journey.

The startup should decide:

• what users see before registration;
• what users accept when opening an account;
• what consumers see before payment;
• which information is separately confirmed;
• how subscriptions are created and cancelled;
• when the KVKK notice is shown;
• when separate consent is requested;
• and how electronic evidence is stored.

For digital businesses, legal compliance is therefore not simply a matter of placing several links in the website footer.

It is part of the product architecture itself.

A legally well-designed mobile application should connect its contracts, privacy notices, payment interface, account creation process, subscription mechanism and electronic records into one coherent compliance system.

That approach not only reduces regulatory risk. It also provides the startup with clear evidence of the relationship with its users, protects intellectual property, supports platform enforcement, increases investor confidence and significantly reduces uncertainty when disputes arise.