MixTracker doesn't require an account, and doesn't send any personal data to the developer's servers.
Everything you enter — holdings, tags, notes, spot price / exchange rate settings — stays only in your device's local storage. The developer cannot read it, and it isn't backed up to any cloud server.
The app has no third-party analytics, advertising, or tracking SDKs built in (e.g. Google Analytics, Facebook SDK).
2. Network connections
The app connects to a self-hosted Supabase service to read public gold/silver/platinum/palladium spot prices and the USD/TWD exchange rate. This is a read-only query and carries no information that could identify you.
Subscription purchases (the Pro plan) are handled entirely by Apple's App Store / StoreKit. Your payment details are collected and held by Apple — the app and its developer never see or handle them.
When your device is offline, the app keeps working from the last cached spot price / exchange rate; your local data is unaffected.
3. Data storage & your control
You can export a full backup (JSON) or a holdings CSV anytime under "Settings → Import/Export", and wipe all local data anytime under "Settings → Clear All Data".
Uninstalling the app deletes all local data (unless you backed it up yourself). Since the app keeps no copy of your data in the cloud, there's no server-side copy to separately request deletion of.
4. Children's privacy
The app isn't directed at children under 13, and doesn't knowingly collect personal data from anyone, including children.
5. Changes to this policy
If this policy changes, the "Last updated" date above will be revised and announced in-app; continuing to use the app means you accept the current version.