Privacy Policy
The short version: StackTrack does not collect, store or transmit any personal information. Everything you enter stays on your own device. There is no account, no sign-in and no server of ours that ever sees your holdings.
What StackTrack stores, and where
The holdings you enter (metal, type, weight, quantity, what you paid, purchase date and currency), your display preferences, and a cache of recent prices are stored only on your device:
- iPhone app: in the app's private storage on your phone, using standard iOS storage.
- Web app: in your browser's local storage on that device. If you turn on auto-backup on a computer, the app writes a backup file to a location you choose; that file stays on your computer.
- Android app: in the app's private storage on your phone.
We have no access to this data. If you export a backup or CSV, that file is created on your device and goes only where you send it. Deleting the app, or clearing your browser data, deletes this information.
What StackTrack does not do
- No account or registration. We do not know who you are.
- No analytics, tracking pixels or advertising identifiers.
- No advertising.
- No connection to your bank, broker or dealer.
- No selling or sharing of data, because there is none to sell.
Third-party services used for prices and news
To show live prices, exchange rates and headlines, the app requests public data from the services below. These requests come from your device and include only the standard information any web request carries (such as your IP address); they never include your holdings.
- Spot prices: Yahoo Finance (iPhone app); gold-api.com (web and Android apps).
- Price history charts: CoinGecko (web and Android apps).
- USD/CAD exchange rate: Frankfurter (frankfurter.app / frankfurter.dev).
- Market news: Google News RSS, relayed through rss2json.com for the web and Android apps.
Each of these services has its own privacy policy. StackTrack sends them nothing about you or your stack.
Permissions
The web and Android apps may ask for permission to save or open a file only when you choose to export or import a backup or CSV. No other permissions are requested.
Children
StackTrack is not directed at children under 13 and does not knowingly collect any information from anyone.
Changes to this policy
If this policy changes, the date at the top will be updated. Because the app collects nothing, changes will typically only describe new data sources.
Contact
Questions about privacy: tdotholdings@gmail.com