Your data stays with you

stosmok has no server. This page explains what that means, and the small amount of data the app does send. Last updated 27 September 2026.

Health data sent anywhere?

No. It is calculated and stored only on your phone.

Linked to your identity?

No. There is no account and no user database.

Used for tracking?

No. There are no ads and no tracking tools.

This matches the privacy information in the app stores: no health data leaves your phone, nothing is linked to you, and nothing is used for tracking.

There is no server

stosmok has no server, no user accounts, and no online database. Every calculation (your smoke-free time, money saved, your dragon's health score and your health milestones) happens on your phone, using data stored in a database on your phone. Nobody at stosmok can see it, because it never leaves your phone.

We made this choice on purpose. A server would need accounts, would mean a company keeping your smoking history, and would need to be kept running and secure forever. The app works without any of that, so none of it exists.

What does leave your device

Only two things, and neither includes your health data.

Store purchases

In-app purchases (the one-time lifetime unlock, and optional dragon skins and themes) are handled by RevenueCat, which checks your purchases with Apple and Google. stosmok uses a random, anonymous app user ID, not an account. RevenueCat receives that ID, your purchase receipts and basic device details such as the app version and store country. It never receives your journal, cravings or smoke-free time. Your payment details stay with Apple or Google.

Crash reports

Optional crash reports through Sentry. You see this option during setup. It is on by default, and you can turn it off there or in Settings at any time. When it is off, the crash reporting code never starts. When it is on, personal data collection is switched off (sendDefaultPii = false): no name, no identifiers, no IP address. Your journal text, your reasons for quitting and your notes are removed from every report before it is sent.

You control your data

Settings has a “Delete all my data” button. It deletes the database on your phone and the daily backup copies the app keeps on your phone. There is nothing to delete on our side, because we never had a copy.

You can also export a copy of your data at any time as one .stosmok file, as your own backup or to move between an iPhone and an Android phone. See the guide for the steps.

stosmok does not sell data. We do not have your data. There are no ads, no tracking tools except the crash reporter described above, and no other company can read anything you write in the app.

Questions

If anything on this page is unclear, email angga@anggastudio.dev.