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stosmok

Privacy PolicyKebijakan Privasi

Package
com.anggastudio.stosmok
Last updated:
13 November 2026

English

1. Introduction

This Privacy Policy explains how anggastudio ("we", "us") handles information related to your use of the stosmok app (package com.anggastudio.stosmok) on your device. This policy is effective on 13 November 2026.

stosmok is a quit-smoking app that works offline, available for Android and iOS. There is no server, no user account, no login, and no online user database. The app works fully in airplane mode.

2. Health Data We Process, and How

We do not collect: your name, email address, phone number, contacts, or an account. stosmok never asks you to log in, and there is no user database on any server, because we do not operate one.

Processed and stored only on your device: your quit date, craving logs, moods, journal entries, cigarettes smoked, and your personal reasons for quitting. All of this is computed and stored in a local SQLite database on your device. This data is never uploaded to our servers or to any third-party server.

3. The Two Things That Leave Your Device

Only two things are ever sent off your device, and neither carries your health data:

  • RevenueCat, for in-app purchases (the lifetime unlock and cosmetic items). It uses a random, anonymous app user ID, not an account. RevenueCat receives that ID, purchase and receipt information, and basic device details such as the app version and store country. It also receives the date you finished setting up the app and the date you started the free trial, so we can see how many people get that far. It never receives your journal entries or journal photos, cravings, or streak data. Payment details stay with Apple or Google.
  • Sentry crash reports, which are optional. The choice is shown during onboarding and is on by default, and you can switch it off there or in settings at any time. When it is off, the crash reporting SDK never initialises at all. When it is on, it runs with sendDefaultPii = false, and anything you wrote (journal text, motivation cards, notes) is scrubbed from breadcrumbs before it is sent.

4. How We Use Information

Health data processed on the device is used solely to power features inside the app itself, such as your smoke-free streak, an estimate of money saved, your companion dragon's health score, and health milestone tracking. All of this runs on your device and the results are never sent anywhere.

5. Data Sharing and Third-Party Services

We do not sell your data. stosmok contains no ads, no advertising SDK, and no analytics beyond the optional Sentry crash reporting described above. The app is distributed through Google Play and the App Store; your use of those stores is subject to each provider's own privacy policy.

6. Backup and Data Storage

Your backup has three layers, all local:

  • The local database on your device, where all of your health data lives.
  • A daily snapshot, saved so your own operating system's backup mechanism (iCloud device backup on iOS, Android Auto Backup on Android) can carry it to a new phone. This is Apple's or Google's infrastructure, not a server we operate.
  • A manual .stosmok export file that you create and share deliberately, for example to move your data to another device. This file supports optional passphrase encryption using AES-256-GCM.

We, as the developer, never have access to any of these three layers.

7. Notifications

All notifications are entirely local and scheduled on your device. There is no push server and no device token sent anywhere.

8. Deleting Your Data

Settings has a "Delete all my data" button. It deletes the database on your phone, the daily backup copies the app keeps on your phone, and any transfer files you exported that are still stored by the app. Uninstalling the app also removes everything. There is no copy on our servers to delete, because there is no server.

9. Children's Privacy

stosmok is aimed at a general audience and is not directed to children under 13. The app is rated 18+ on the App Store due to tobacco references. We do not knowingly collect personal data from children.

10. In-App Purchases

stosmok is free to install. After onboarding, a single one-time purchase unlocks the whole app for life. It is not a subscription and never charges again. You can also try the whole app free for three days with no payment; the trial is tracked only on your device. The SOS craving tools are free for everyone. Other purchases are cosmetic only, such as dragon skins and themes. All payments are processed by Apple or Google, and refunds are handled by that store. See the terms of use.

11. Medical Disclaimer

stosmok is not a medical device and does not provide medical advice. Health recovery timings shown in the app are drawn from CDC and NHS smoking cessation guidance and are labelled as estimates, not guarantees. The life-expectancy figure (11 minutes regained per cigarette not smoked) comes from Shaw, Mitchell, and Dorling, BMJ 2000. Anyone who needs medical support to quit smoking should speak to a doctor or a professional cessation service.

12. Your Choices and Rights

You can:

  • turn Sentry crash reporting consent on or off at any time in app settings;
  • export your own data at any time as a .stosmok file;
  • delete all data or uninstall the app at any time;
  • contact us with privacy questions at angga@anggastudio.dev.

Users in the EU, UK, and other jurisdictions with privacy rights generally have the right to access, correct, or delete their personal data. Because your health data lives only on your device and we hold none of it on a server, these requests are already satisfied by the export and delete tools built into the app.

13. Security

Because your health data is processed and stored locally and is never sent to our servers, the risk is very limited. Manual exports can be encrypted with a passphrase using AES-256-GCM at your option. However, no method of electronic storage is 100% secure.

14. Changes to This Policy

We may update this Privacy Policy from time to time. For material changes, we will update the date at the top of this document. Continued use of the app after an update constitutes acceptance of the revised policy.

15. Contact

Privacy questions and requests can be sent to angga@anggastudio.dev.

See privacy policies for other anggastudio apps

This document is a transparency notice authored by the developer. It is not legal advice. For questions about your rights under applicable law, consult a qualified professional.