Privacy policy

Applies to the Money Tracker Wallet app (Sổ Thu Chi) for iPhone and iPad. Last updated October 28, 2026.

Summary

Money Tracker has no accounts and no server of its own. Every entry, account, budget, loan, receipt photo and backup is stored on your device. The app uses Google services (Firebase, AdMob) to measure usage, report crashes and show ads; these services never receive your amounts or what you write.

Data that stays on your device

Data that is sent

ServiceWhat it receivesWhy
Google Analytics for FirebaseScreens opened, actions (for example "an entry was saved", without the amount), device model, iOS version, country, an app installation IDLearn which features are used, to improve the app
Firebase CrashlyticsCrash reports: where in the code it failed, device model, app versionFix bugs
Firebase Remote ConfigAn app installation IDTurn features on or off and tune ad frequency without an update
Google AdMobThe advertising identifier (IDFA) only if you allow tracking; otherwise ads are served without it. In the EEA, the UK and some US states the app asks for your consent first; change it in More › Ad privacy settingsShow ads in the free version
Exchange rates (currency-api via jsDelivr / Cloudflare)Two currency codes and a date, when you record an entry in another currency or change your main currencySuggest that day's exchange rate

Google's policy: policies.google.com/privacy. We do not sell data and do not use it to track you across other companies' apps or websites, except for AdMob ads when you have allowed it.

Permissions

Buying Pro

Purchases are handled by Apple through the App Store. We never receive your payment details; the app only knows whether you own Pro.

Deleting your data

More › Settings › Delete all data removes every entry on the device (the app keeps one backup first; you can delete it in Backup and restore). Deleting the app removes all of its data from the device.

Contact

ICHITECH · ichitech89@gmail.com. When this policy changes, the date at the top of the page changes with it.