Privacy Policy
Last updated: September 2025
This policy explains what data the Check Water Proof app (“the app”) accesses, collects and shares on iOS and Android.
iOS
The iOS version of the app is designed to work on your device:
- No account or sign-in is required.
- Ads are served by Google AdMob (banner and completion interstitial only — no app-open ads). AdMob may process device and advertising data under Google's Privacy Policy. The app does not request App Tracking Transparency, so ads are limited and non-personalised.
- No analytics or push-notification service is enabled.
- Barometric pressure and motion data are read on-device and never leave your phone.
- Microphone recordings created during the microphone diagnostic are stored only in the app's private storage, are used solely for playback in that test, and are deleted afterwards.
- Face ID / Touch ID is used only to confirm your identity locally; no biometric data is read, stored or transmitted by the app.
- Diagnostic reports leave the device only when you choose to share them using the system share sheet.
Android
The Android version uses the following third-party services, which may process device and usage data according to their own policies:
- Firebase Analytics — anonymous app-usage statistics.
- Firebase Cloud Messaging — a push token used to deliver notifications.
- Google AdMob — advertising identifiers used to serve and measure ads.
Data processed by these services is governed by Google's Privacy Policy. Diagnostic data (microphone recordings, sensor readings, reports) remains on your device unless you share it yourself.
Permissions
- Microphone — used only for the microphone diagnostic test. No audio is uploaded.
- Motion & Fitness / Barometer — used for the pressure-response water-resistance estimate.
- Face ID / Touch ID — used to run the biometric diagnostic check. The app never receives biometric data.
- Notifications (Android only) — used to deliver app notifications.
Children's privacy
The app is not directed at children and does not knowingly collect personal data from children.
Changes & contact
This policy may be updated; material changes will be reflected on this page. For questions, contact us via the GitLab project issues page.