Contact & support
Tangent is made by one developer. Email is the only support channel, and it reaches him directly.
How to reach us
| Developer | MD AYUB MONDAL |
|---|---|
| Support email | solid.tv.100@gmail.com |
| App package | com.tangent.app |
| Platform | Android 7.0 (API 24) and newer |
| Response time | Usually within a few days. This is a one-person project, not a staffed help desk. |
Joining the test
Tangent is in closed testing on Google Play. To be added, email solid.tv.100@gmail.com from — or naming — the Google account you use on your Android phone, since a tester invitation can only be sent to a Google account. You will get back a join link.
Reporting a problem
The more of this you can include, the faster it gets fixed:
- What you were doing, and what happened instead of what you expected.
- The screen it happened on.
- Your device model and Android version (Settings → About phone).
- The app version (Profile screen, or the Play Store listing).
- A screenshot, if the problem is visible.
If the app crashed: reopen it. Tangent saves a technical report of the previous crash and shows it to you on the next launch. Screenshot that screen and attach it — it names the exact line that failed. That report is stored only on your device and is never sent anywhere automatically.
Common questions
Do I need an account?
No. There is no sign-up, and there is nothing to log in to. Open the app and start.
Does Tangent work without internet?
Yes — entirely. The app has no internet permission and no networking code, so every feature works offline by design. There is nothing that needs a connection.
Will my data sync to a new phone?
No. Your records live only on the device that created them, and the database is deliberately excluded from Android backup and device transfer. Before switching phones, export a progress report from Profile → Progress Dashboard to keep a copy of your history.
I forgot my app-lock PIN.
The PIN is stored only as a salted hash on your device, so it cannot be recovered or reset by us — there is no account behind it. If you cannot get in, clearing the app's data removes the lock, but it also erases your history. See Delete your data.
Why don't my reminders arrive exactly on time?
Reminders are scheduled inexactly on purpose, so Android can batch them and save battery, and the app does not ask for exact-alarm permission. Expect a few minutes' variance. Battery-saver and app-standby settings on your device can delay them further.
Can I scan barcodes or photograph my food?
No. Both would require sending data to a server, and Tangent has no network access. You can search the built-in food catalogue or save your own custom foods with their values.
How do I delete everything?
Uninstall the app, or clear its data in Android settings. Full steps are on Delete your data.
Is Tangent free?
Yes. There are no ads, no in-app purchases and no subscription.
Also worth reading
- Privacy Policy — what is stored, and what is not
- Data Safety — the Google Play declaration, explained
- Health & Fitness Disclaimer — read before exercising
- Terms of Service