Privacy Policy

Last updated: 1 September 2026

Paperball does not collect any data. Not anonymised data, not “diagnostics”, not an advertising identifier. There is no server to send it to, and the app has no code that could send it.

This policy explains what that means in practice, and what the app does keep on your own device. It applies to the Paperball mobile app (com.paperball.drawlinephysicspuzzle) on iOS and Android.

Data we collect

None. Paperball contains no analytics SDK, no advertising SDK, no crash-reporting service, and no account system. There is no sign-up, no login, and no way to contact the app’s developer from inside the game.

We therefore do not collect, store, transmit, sell, or share any personal information — including names, email addresses, contacts, location, photos, device identifiers, or advertising IDs.

What the app stores on your device

Paperball saves your game state locally so the app remembers where you left off. This data never leaves your device. It is written to the operating system’s standard app-preferences store — NSUserDefaults on iOS, SharedPreferences on Android — inside the app’s private sandbox, which no other app can read.

• Your best star rating for each level you have played
• The date of your most recent daily first win, so the bonus is granted once a day
• Your coin balance, the ball skins you own, and the skin you have equipped
• Your sound, music, and haptics switches, and your chosen language

None of this is personal information, and none of it is transmitted anywhere. We list it here because it is your data and you are entitled to know it exists.

Deleting your data

Two ways, both entirely under your control:

• In the app: Settings → Reset progress. This clears your stars, coins, and unlocked skins.
• Uninstall: removing Paperball deletes its sandbox and everything in it. Nothing is retained, because nothing was ever stored anywhere but on your device.

Permissions

The Android release build declares exactly one permission, and it is not one you will ever be asked to approve:

• ….DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION — generated automatically by the Android build system to keep the app’s internal broadcasts private to itself. It grants no access to your device or your data.

The release build does not request internet access. Android cannot open a network connection without the INTERNET permission, so the app is technically incapable of sending anything anywhere. On iOS, Paperball declares no permission-usage descriptions at all, which means it never asks for the camera, microphone, photos, location, contacts, or tracking.

Third-party software

Paperball is built with Flutter and uses a small number of open-source libraries for local storage, state management, and audio playback. None of them are analytics or advertising services, and none of them transmit data off the device.

There are no third-party SDKs from advertising networks, attribution providers, or social platforms in this app.

Children

Paperball is suitable for all ages and does not collect data from anyone, children included. Because no personal information is ever collected, no parental consent mechanism is required under COPPA, the GDPR, or comparable laws — there is nothing to consent to.

Your rights

Privacy laws such as the GDPR and the CCPA give you rights to access, correct, export, or delete the personal data a company holds about you. We hold no personal data about you, so there is nothing for us to produce or erase. The only game data that exists is on your device, and you can delete it yourself at any time using the steps above.

Changes to this policy

If a future version of Paperball ever introduces something that touches your data — ads, analytics, cloud saves, or an account — this policy will be updated before that version ships, and the change will be described in the store release notes. The “last updated” date at the top of this page always reflects the current version.