Data Controller
- Company:
- KefStacks Technologies
- Address:
- Cumhuriyet Teknokent – Yenisehir Kardesler St. No: 7/2 B Block, 58070 Merkez/Sivas
- Phone:
- +90 501 656 84 58
- Contact:
- info@kefstacks.com
Personal Data We Collect
Registration Information
- Name, surname, email address, password (hashed)
Usage Data
- Characters you create (name, age)
- Stories you produce and their text/images/audio
- Credits used and service logs
Payment Data
- Order information (package, amount, date, conversation id)
- Card information is not received by us — payment data is processed directly by iyzico.
Technical Data
- IP address, browser type, device information
- Cookies (see Cookie Policy for details)
Data Processing Purposes
- Account creation and identity verification
- Service delivery (story generation, library storage)
- Processing payments and crediting credits
- Compliance with legal obligations (tax, KVKK)
- Improving service quality (anonymous analytics)
- Communication regarding support requests
Legal Basis and Transfer
- Performance of the contract (KVKK art. 5/2-c)
- Legal obligation (KVKK art. 5/2-ç)
- Explicit consent (for marketing notifications)
- International transfer of data: user data may be shared anonymously with AI model providers like OpenAI/Anthropic for story generation.
Retention Period
- Stored as long as the account is active.
- When the account is deleted, personal data is anonymized or deleted within 30 days.
- Payment records are kept for 10 years due to legal requirements.
Your Rights Under KVKK
Under KVKK art. 11, you have the following rights:
- To learn whether your data is being processed
- To request information about it if it is processed
- To request correction of your data
- To request its deletion when legal conditions arise
- To object to analyses made by automated systems
- To claim damages if you have suffered harm
To exercise your rights, you can apply to info@kefstacks.com. For detailed information, please review the KVKK Notice.
Security Measures
- HTTPS encryption is enabled on all traffic.
- Passwords are stored hashed with bcrypt.
- Payment information is processed on PCI-DSS compliant iyzico infrastructure.
- Regular security updates and penetration tests are performed.
Children's Privacy
On vopido, a story character can be created for ages 1 to 18. When creating a character, only the child's name (or nickname) and age are collected; this information is used solely to personalise the story, is not shared with third parties, and is never processed for advertising. Accounts are created by the person who wishes to use the service; users under 18 should use the account under the supervision of a parent or legal guardian. vopido does not knowingly collect personal data directly from children under 13 through account registration. Parents who believe their child's information was entered without their consent may contact us at info@kefstacks.com to request deletion.
How to Stay in Control of Your Data
We provide the following tools to make it easier to stay in control of your personal data. You do not need to give a reason for any of these requests.
- You can update your name, email and password at any time from your profile page.
- You can delete stories from your library individually, which removes the information used to generate that story from your account.
- When you request full deletion of your account, all data not subject to a statutory retention obligation is permanently deleted.
- If you no longer wish to receive marketing messages, you can opt out with one click from the link at the bottom of our emails; this does not affect essential service notifications.
- You can clear the data stored in your browser and your cookie preferences using the methods described in our cookie policy.
Sending requests from the email address registered to your account speeds up identity verification and shortens the time needed to complete the process.
Policy Changes
This Privacy Policy may be updated as needed. Major changes are announced via email and site notifications. The current version is always available on this page.