Kör Sarmal
Blind Helix · Privacy Policy · Last updated: November 7, 2026
1. Overview
This policy explains how information is handled in Kör Sarmal: Blind Helix ("the App"), a descent game for Android and iOS. The game requires no account or sign-in; your progress is stored on your device.
- We do not collect your name, email address, phone number, contacts, photos or precise location.
- The App is free and shows ads through Google AdMob. There are no in-app purchases.
- Anonymous usage statistics and crash reports are collected with Google Firebase to improve the game (see section 4).
- There are no accounts, chat, friend lists or messaging between players.
- We do not sell personal data.
2. Data Stored on Your Device
The following data is kept only in the App's private storage on your device and is not sent to us.
| Data | Examples | Purpose |
|---|---|---|
| Game progress | Deepest ring and records, restored districts, district stars, Narin records found, Everyone's Well and Weekly Guardian results | Letting you continue where you left off |
| In-game economy | Crystal balance, unlocked orbs and upgrades, opened chests, daily missions and login streak | Keeping the rewards you earned |
| Settings | Language, sound, music, haptics, screen shake, turn sensitivity, frame rate | Remembering your preferences |
| Ad counters | Number of finished runs and the time of the last full-screen ad | Limiting how often ads appear |
Crystals and other in-game rewards have no real monetary value; they cannot be bought, sold or exchanged.
3. Advertising (Google AdMob)
The App is free and supported by ads served by Google AdMob (Google LLC):
- a banner shown only on the main menu and the results screen, never during play;
- after the first runs, a frequency-capped full-screen ad shown only between runs;
- optional rewarded videos that you choose to watch (revive in place, double your crystals).
To serve and measure ads, cap their frequency and prevent abuse, Google may collect:
- the advertising ID (Android Advertising ID, or Apple IDFA if you allow tracking);
- IP address and the approximate location derived from it (country/city);
- device model, operating system and version, language, screen size and network type;
- ad interactions such as an ad being shown, clicked or watched to the end;
- crash and performance diagnostics from the ads SDK.
Google collects this information directly under its own policies. Personalised ads are shown only where the law and your choices allow.
- How Google uses data in ads: policies.google.com/technologies/ads
- How Google uses data from partner apps: policies.google.com/technologies/partner-sites
- Google Privacy Policy: policies.google.com/privacy
4. Usage Statistics and Crash Reports (Firebase)
We use Google Firebase services to see where the game gets hard, fix bugs and tune the balance:
- Firebase Analytics: in-game events such as run start and end, depth reached, score, crystals earned, why and when a run ended, seals and Guardians passed, power-ups chosen, revive method, records found and crystals spent; an app instance ID, device model, operating system, app language, country-level location and app version.
- Firebase Crashlytics: when the App crashes or hits a serious error, the error log and device and system information.
- Firebase Remote Config: settings such as ad frequency, revive price and game feel are downloaded with an installation ID so they can be changed without an app update.
This data does not identify you by name and is not used for advertising; ad-related storage and personalisation stay off unless you allow them in the consent form. Firebase privacy information: firebase.google.com/support/privacy
5. Consent and Your Choices
- EEA, UK and Switzerland: on first launch the Google User Messaging Platform consent form asks whether your data may be used for personalised ads. You can change your choice in the App under Settings → Privacy & ad choices (shown where consent is required).
- Android: you can reset or delete your advertising ID under Settings → Google → Ads (or Settings → Privacy → Ads, depending on the device).
- iOS: the App can access the advertising ID only if you allow tracking. You can change this under Settings → Privacy & Security → Tracking.
If you decline personalised ads, you may still see contextual, non-personalised ads. Rewarded videos are always optional.
6. Permissions
- Internet and network state: to load ads and for Firebase services.
- Advertising ID (Android): used by Google AdMob as described above.
- Vibration: for in-game haptic feedback; can be turned off in Settings.
- Tracking (iOS, optional): for personalised ads; you can decline.
The App does not access your camera, microphone, contacts, photos, files or location services, and does not send notifications.
7. Retention and Deletion
- Game data on your device stays there until you delete it. Uninstalling the App or clearing its data (Android: Settings → Apps → Kör Sarmal → Storage → Clear data) deletes it permanently; since there is no account, we cannot move your progress to another device or restore it.
- Analytics data is kept for up to 14 months under Firebase's retention setting; Crashlytics records for up to 90 days.
- Ad data is kept according to Google's retention policy: policies.google.com/technologies/retention
8. Service Providers and International Transfers
| Provider | Purpose |
|---|---|
| Google AdMob (Google LLC) | Serving and measuring ads |
| Google User Messaging Platform (Google LLC) | Consent management |
| Firebase Analytics, Crashlytics, Remote Config (Google LLC) | Usage statistics, crash reports, remote settings |
Google may process data on servers outside your country, including the United States and the European Union, under its own safeguards. We share data with no other third parties and do not disclose it to authorities unless legally required.
9. Your Rights
Depending on where you live, you may have the following rights under the Turkish Personal Data Protection Law No. 6698 (KVKK) or the EU General Data Protection Regulation (GDPR):
- to learn whether your data is processed and request information about it;
- to ask for it to be corrected or deleted;
- to object to processing, including personalised ads, and to withdraw consent at any time;
- to know the third parties your data is transferred to;
- to complain to the competent data protection authority (in Türkiye, the Personal Data Protection Authority).
You can manage ad-related data at myadcenter.google.com. For other requests, contact us at the address below; we reply within 30 days.
10. Children's Privacy
The App is not directed at children under 13, and we do not knowingly collect personal data from children of that age. If you become aware of such a case, please contact us.
11. Changes to This Policy
We may update this policy, for example when new features are added. The "Last updated" date at the top shows the latest change; the current version is always published on this page.
12. Contact
Email: paworasupport@buckun.com
Please mention "Kör Sarmal" in your message. We reply within 30 days.