Istaka Privacy Policy
This policy explains what data the Istaka Android and iOS app (net.savasdogan.istaka), developed by Savaş Doğan, processes and how.
- App
- Istaka
- Android package
net.savasdogan.istaka- iOS bundle ID
net.savasdogan.istaka- Developer and data controller
- Savaş Doğan, Türkiye
- Effective date
- September 25, 2026
- Contact
- kefukar@gmail.com
In short
Istaka has no accounts, and your game progress is stored only on your device. The free version shows ads served by Google AdMob, which uses your device’s advertising ID and some technical data. The Premium purchase is verified with RevenueCat using an anonymous ID. The game has no server of its own run by the developer.
What data goes where?
| Data | Goes to | Purpose |
|---|---|---|
| Game progress, daily results, streak, statistics, settings | Your device only | Running the game |
| Advertising ID | Google AdMob | Serving ads, ad measurement, fraud prevention |
| IP address (used to estimate approximate location) | Google AdMob | Serving ads, ad measurement, fraud prevention |
| On iOS: other device identifiers limited to the app or developer (the advertising identifier only if you allow tracking) | Google AdMob | Serving ads, ad measurement, fraud prevention |
| Ad interactions (impressions, taps, video views) | Google AdMob | Serving ads, ad measurement, fraud prevention |
| Diagnostics (e.g. app launch time, crash information) | Google AdMob | Serving ads, ad measurement, fraud prevention |
| Anonymous ID and purchase record (which product, when) | RevenueCat | Unlocking and restoring Premium, fraud prevention, aggregate sales statistics |
| Payment details | Google Play only (App Store on iOS) | Processing the payment; the developer never sees or stores them |
Data that stays on your device
Your progress, daily puzzle results, streak, statistics, daily hint allowance and settings (sound, language, text size, etc.) are stored only on your device. They are not sent to us or to any third party. Deleting the app deletes this data from the device.
If device backup is turned on, this data can be included in it: Android’s automatic backup saves it to your Google account, an iPhone backup to iCloud (or your computer), and it may be restored when you install the app on a new device with the same account. These backups are held by Google or Apple; the developer has no access to them. You can turn backup off in your device settings; deleting the app does not delete an existing backup.
Ads (Google AdMob)
The free version shows interstitial ads between levels. When your free daily hint is used up, you can choose to watch a rewarded ad. Ads are served by Google. The Google Mobile Ads SDK collects the advertising ID, IP address, ad interactions and diagnostics and sends them to Google. This data is used to serve ads, measure them and prevent fraud.
- EU, UK and Switzerland. Google’s consent form is shown on first launch. Personalised ads are shown only if you consent. You can change your choice in Settings → Ad preferences.
- Android. You can reset or delete your advertising ID in your Android settings.
- iOS. The app asks for tracking permission. If you decline, your advertising identifier (IDFA) is not used; the game works the same and ads still appear. Google may still process other device identifiers limited to the app or developer, and your IP address, to serve and measure ads and prevent fraud. You can change this under Privacy & Security › Tracking in the iOS Settings app.
- Ad content is limited to ads suitable for general audiences. Premium owners do not see interstitial ads.
How Google uses this data: policies.google.com/technologies/partner-sites · Google Privacy Policy: policies.google.com/privacy
Premium purchase (RevenueCat)
- Premium is a one-time in-app purchase.
- Payment is processed by Google (Google Play) or Apple (App Store). We never see or store your payment details.
- The purchase is verified through RevenueCat. For this, the app sends RevenueCat a randomly generated anonymous ID and the purchase record issued by the store (which product, when it was bought). This record is not linked to your name, email address or advertising ID.
- This information is used only to unlock Premium, restore purchases, prevent fraud and produce aggregate sales statistics. It is not sold and not used for advertising.
- RevenueCat’s privacy policy: revenuecat.com/privacy
Sharing and notifications
When you share a daily puzzle result, the text goes through your device’s share menu to the app you choose; it is not sent to us. Reminder notifications are scheduled on your device and no data is sent for them. You can turn notifications off in your Android or iOS settings.
Transfers and security
Data sent to Google and RevenueCat is encrypted in transit (TLS). These services process data on their own servers under their own policies; those servers may be outside the European Union, for example in the USA. Such transfers rely on the providers’ safeguards (for example, EU Standard Contractual Clauses). The game has no server of its own run by the developer.
Legal basis and retention
- Personalised ads. In the EU, UK and Switzerland, based on your consent. You can withdraw your consent at any time in Settings → Ad preferences.
- Serving and measuring ads, preventing fraud. Based on our legitimate interest in offering the free version with ads.
- Premium verification. Necessary to provide the product you bought (performance of a contract).
- If you email us. We use your address and message only to answer your request.
- Retention. Data on your device stays there until you delete the app. The anonymous purchase record is kept as long as needed to provide Premium, or until you ask us to delete it. Emails are kept as long as needed to resolve your request. How long Google keeps ad data: policies.google.com/technologies/retention
Children
Istaka is not directed at children and does not target children under 13. Ads are not tagged as child-directed; ad content is limited to ads suitable for general audiences.
Your rights and deletion requests
- Account. Istaka does not create accounts, so there is no account or account data to delete.
- Data on your device. Uninstalling the app deletes all game data on the device. On Android, clearing the app’s data in Android settings does the same.
- Ad data. You can change your choices in the app’s Settings. On Android you can reset your advertising ID in Android settings; on iOS you can withdraw tracking permission under Privacy & Security › Tracking in the iOS Settings app. For data held by Google, use Google’s privacy tools.
- Purchase record. To have your anonymous purchase record deleted, write to kefukar@gmail.com and include your store order number (from your Google Play or App Store receipt) so we can find the record. After deletion you can still recover your purchase through the store with “Restore purchases”.
- Your legal rights (GDPR, KVKK). You have the right to access your data, have it corrected or deleted, restrict or object to its processing, receive it in a portable format, and withdraw your consent at any time. Withdrawing consent does not affect processing that took place before. Write to kefukar@gmail.com; we reply within 30 days. Google is an independent controller for ad data; you can also send requests about that data to Google.
- Complaints. If you are not satisfied with our reply, you can complain to the data protection authority in your country (in Türkiye, the Personal Data Protection Board, KVKK).
Changes
If this policy changes, the updated text will be published on this page with a new effective date.
Contact
Savaş Doğan · kefukar@gmail.com. Privacy questions and deletion requests go to this address. The game’s page: Istaka.
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