Privacy policy
This policy explains how personal data is handled in the Derken app. It is also the notice required by Article 10 of Turkey’s Personal Data Protection Law No. 6698 (KVKK).
In short
- Derken does not ask you to create an account. It never asks for your name, e-mail address or phone number.
- Your reading progress, saves, endings found and settings are kept on your phone; they are not sent to us.
- The app has no ads, no analytics and nothing else that tracks you.
- The app goes online only to reach Google Play for purchases.
- Google Play takes your payment; your card details never reach us.
Who is responsible
Derken is developed and published by Okan Çilingiroğlu, the data controller under the KVKK. For any question about this policy, write to okan.cilingiroglu@gmail.com.
What stays on your phone
The app keeps the following on your phone only:
- the page you are on, the earlier pages you can go back to, and your save slots;
- the endings you have found;
- the name you give your character in a story;
- your theme, text size and language settings;
- your age group (under 13, 13 to 17, 18 and over), worked out from the birth year asked in the welcome; the year itself is not kept;
- the list of stories you have bought, so their locks open without a connection.
We cannot see any of it. If your phone’s backup setting is on, Android may back this data up to your own Google account, so your progress comes back on a new phone. Google keeps that backup and we cannot see it. You can turn backup off in your phone’s settings.
Purchases
You buy stories through Google Play. Google takes and processes the payment, under the Google Privacy Policy. Your card details never reach us.
The app learns two things from Google Play: which stories your account has bought, and the store’s country. The country (TR, for example) picks the edition of the stories prepared for that country, and is not kept.
Google shows us information about sales in the Google Play Console, such as the order number, the story bought, the amount, the date and the country. We use it to manage sales, handle refund requests and meet our tax and accounting obligations, and keep it for as long as the law requires.
Technical reports
If sharing usage and diagnostics with Google is turned on in your phone’s settings, Google shows us technical reports when the app crashes or freezes: the phone model, the Android version and where in the app the error happened. They do not identify you. We use them only to fix errors.
If you write to us
If you send us an e-mail, we use your address and message only to answer you and deal with your request, and we do not keep the conversation once the matter is closed. Our e-mail is provided by Google, so messages may be stored on Google’s servers outside Turkey.
Age
Derken is for ages 13 and up. If the birth year entered in the welcome shows you are under 13, the app shows only a note saying so, and nothing else opens.
Legal grounds
- Purchases: entering into and performing a contract (KVKK Art. 5/2-c).
- Sales and tax records: required by law, and our legal obligations (Art. 5/2-a and 5/2-ç).
- Correspondence and technical reports: our legitimate interest, as long as it does not harm your fundamental rights and freedoms (Art. 5/2-f).
Deleting your data
You can delete everything on your phone with “Delete my data” on the app’s credits page; the app returns to how it was when first opened. Uninstalling the app does the same. Stories you bought stay with your Google account and come back with “Restore purchases”.
Your rights
Under Article 11 of the KVKK, you have the right to:
- learn whether your personal data is processed, and ask for information if it is;
- learn the purpose of the processing and whether the data is used for that purpose;
- know the third parties, in Turkey or abroad, the data is transferred to;
- ask for it to be corrected if it is incomplete or wrong;
- ask for it to be erased or destroyed under the conditions in Article 7 of the KVKK;
- ask for corrections, erasure and destruction to be passed on to the third parties the data was transferred to;
- object to a result against you that comes only from automated analysis of your data;
- claim compensation if you suffer damage because your data was processed unlawfully.
Send your request to okan.cilingiroglu@gmail.com. We answer within 30 days at the latest, and as a rule free of charge.
Changes
If we change this policy, we update the date above. We also announce significant changes in the app.