Last updated 12 August 2026. Applies to Tunnel Cobra for iOS, iPadOS and Android.
Tunnel Cobra collects nothing.
No accounts. No analytics. No advertising. No tracking of any kind, across this app or anywhere else. Nothing about you is gathered, stored on a server, sold, or shared — because none of it is ever collected in the first place.
The app makes no network requests of its own and works perfectly well with the device in aeroplane mode.
It contains no analytics, advertising or tracking libraries. The Android version includes one third-party component — Google's Play Games Services — used solely to offer optional leaderboards and achievements, described below. The iOS version has no third-party components at all.
What is stored on your device
The game saves a small amount of data locally, so that it can remember your progress between sessions. This never leaves your device, and it is not readable by me or by anyone else:
- Your best score, best depth, and total number of runs
- Counts of fuel depots and enemies destroyed
- Your Daily Challenge score, best, and streak
- Your settings: sound, haptics, reduce motion, assist mode, and which side the flight stick is on
Deleting the app deletes all of it.
Leaderboards
Both versions offer optional leaderboards: Game Center on iOS and iPadOS, Play Games Services on Android. Both are the platform owner's service rather than mine, and both are entirely optional — the game is fully playable without either, and never blocks, prompts or nags you to sign in.
Game Center
Tunnel Cobra offers optional leaderboards and achievements through Game Center, which is Apple's service, not mine. If you are signed in to Game Center and play a run, your score is submitted to the relevant leaderboard and any achievements you earn are recorded.
What I receive from this is what any player can already see: leaderboard entries, consisting of a score and whatever display name you have chosen to show in Game Center. I do not receive your Apple Account, your email address, or any means of contacting or identifying you.
Apple's handling of Game Center data is covered by the Apple Privacy Policy. You can sign out of Game Center at any time in iOS Settings → Game Center; the game remains fully playable if you do.
Play Games Services
On Android the equivalent is Play Games Services, which is Google's service. If you are signed in and play a run, your score is submitted to the relevant leaderboard and any achievements you earn are recorded there. As with Game Center, what I receive is what any player can already see — a score and the display name you have chosen — and never your Google account, your email address, or any means of contacting or identifying you.
Google's handling of that data is covered by the Google Privacy Policy. You can sign out in the Play Games app, and the game remains fully playable if you do. If Play Games is unavailable on your device for any reason, the leaderboard feature simply does not appear.
Children
The app is suitable for all ages and collects no personal information from anyone, including children under 13. There is nothing to consent to, and no data that a parent would need to request the deletion of.
Purchases
There are no in-app purchases, no subscriptions, and no advertising. If you bought the app, that transaction was between you and Apple or Google; I never see your payment details.
Your rights
Regulations such as the GDPR and the CCPA give you rights to access, correct, export, or delete the personal data a company holds about you. I hold none, so there is nothing to access or delete. The local data described above is entirely under your control and is removed by deleting the app.
Changes to this policy
If the app ever begins collecting anything — which is not planned — this page will be updated before that version ships, and the date at the top will change. Past versions of this policy are in the app's source repository.
Contact
Questions about this policy, or about privacy generally: