// ComeOn is an offline periodic-table reference with a spaced-repetition study deck and an element quiz.
[01] Information collected // inputs
None. There is no sign-up, no login, no email capture, and no analytics or advertising SDK in the app.
[02] Local storage // on-device
The app keeps a small local database (Hive) in its own private storage. It holds only what you create by using the app, and is never uploaded:
- The display name and avatar mark you choose on the Record screen.
- Your study deck: which elements you added, which spaced-repetition box each card sits in, and when each card is next due.
- Your quiz history: date, question style, scope, score, number correct, and elapsed time for your most recent runs.
- Counters used for badges and rank: experience points, which element dossiers you have opened, and which days you were active.
- Your control settings: questions per run, default scope, question timer, atomic-mass display, high-separation family colours, and calm motion.
None of this is transmitted anywhere. It stays in the app's sandbox until you delete it — uninstalling removes every byte.
[03] Permissions // runtime
ComeOn requests no runtime permissions. Its release manifest declares no permissions at all — not internet, not storage, not camera, not location. (Debug builds installed from a development machine add the INTERNET permission because Flutter's developer tooling needs it for hot reload; that permission is not present in the version published to the Play Store.)
[04] Network // egress
The app is fully offline. All 118 element records ship inside the application binary. It makes no HTTP requests, opens no sockets, loads no remote content, and contains no networking library.
[05] Third parties // vendors
None are integrated. There is no analytics provider, no crash reporter, no advertising network, no attribution SDK, and no cloud backend.
[06] Children // coppa/gdpr-k
Because ComeOn collects no personal information and transmits nothing off the device, it does not knowingly or unknowingly collect data from children under 13 (COPPA) or under 16 (GDPR-K). The app is suitable for classroom and general audiences.
[07] Your rights // you
All app data is local to your device. You can change your name, avatar and settings at any time from the Record and Controls screens, and you can remove individual cards from your study deck. Uninstalling the app permanently deletes everything it stored — there is no copy anywhere else for us to hold, export, or delete on your behalf.
[08] Changes // changelog
If this policy changes, the updated field at the top of this page will carry a new date. Material changes are also noted in the app's release notes.