Disc Tracker — Privacy Policy

Effective date: August 17, 2026 · Last updated: October 17, 2026

Disc Tracker (the “app”) is a local-first disc golf bag tracker for Android. This policy explains what data the app handles. The short version: everything stays on your device, and the app makes no network connections unless you ask it to.

Open source

Disc Tracker is free and open source software, released under the GPLv3 license. The complete source code is published at github.com/flyboy-byte/disc-tracker. You can audit every line yourself to verify the claims in this policy. Issues and contributions are welcome via the repository.

Data we collect

None. Disc Tracker does not collect, transmit, sell, share, or otherwise send any personal information, usage data, device identifiers, advertising identifiers, or analytics anywhere. The app has no user accounts. The only network requests it can make are the optional ones listed under “Optional network features” below, and only after you choose them.

Data stored on your device

• Your bag. Discs, flight numbers, plastic/weight/color/wear notes, today’s-bag selections, custom scorecards, and app preferences are saved locally on your device in a SQLite database. This data never leaves your phone unless you explicitly export or back it up yourself (see below).
• Backups & CSV export. The Backup & Restore and CSV export features write a file to a folder you pick, or hand it to Android’s share sheet if you choose “Send a copy” — where that file goes from there is entirely your choice. The app itself never uploads it anywhere.
• Disc Suggest preferences. Swiping a disc away in Disc Suggest saves a per-scenario reorder, and, in Buy mode, a small locally-derived preference profile (which flight numbers and manufacturers you’ve been passing on, used only to re-rank future suggestions). This never leaves your device, is never transmitted or analyzed anywhere, and can be reset anytime in-app (“Reset order” and the Learning on/off toggle on the Disc Suggest screen).
• No Android Auto Backup, either. The app opts out of Android’s OS-level Auto Backup (android:allowBackup="false"), so nothing about your data is ever included in your device’s own Google Account backup. The only way your data moves anywhere is the explicit Backup & Restore feature above — a file you create and send yourself.

Uninstalling the app deletes all locally stored data. You can also clear it manually in Android Settings → Apps → Disc Tracker → Storage → Clear Data, or use the in-app “Delete all discs” option in Settings.

Optional network features

With none of these used, the app makes no network connections at all.

• Larger disc catalog (Try Discs). The app can download an expanded disc catalog (disc data provided by Try Discs) from disc.flyboybyte.com, a server run by the developer. This happens only when you tap Download — on the one-time prompt at first launch, or in Settings → Disc Catalog. The request is a plain file download: no account, identifier, or bag data is sent. Like any web server, it keeps a standard access log (IP address, time, the file requested, and your device’s user-agent string), which is used only for operating the server and is deleted after 14 days. Once downloaded, the catalog is stored on your device and works offline.
• Custom catalog URL. If you choose to import a catalog from a web address you enter, the app downloads it from that address. That server is yours or someone you chose, not the developer’s.
• Reference flight images. Disc Suggest and the Bag view can show a measured flight-path image for a disc, from the third-party Marshall Street flight guide data served by discit-api.fly.dev. This is off by default — it only runs if you enable “Marshall Street reference images” in Settings. When enabled, the app sends the mold name of a disc you’re actively viewing to that API to fetch its image; no other personal or bag data is included. Turning the setting off stops all requests to it immediately.

Permissions

• android.permission.INTERNET — used only for the optional network features above.
• android.permission.VIBRATE — used for tap/haptic feedback on interactive controls.

The app requests no storage permission. Backups and CSV files are saved to a folder you pick, and opened from a file you pick, using Android’s own folder and file pickers, which grant access only to what you choose.

Third parties

Disc Tracker does not include analytics, advertising, crash reporting, or tracking SDKs of any kind. The only third-party service the app ever talks to is the opt-in Marshall Street image lookup described above.

Children’s privacy

The app does not knowingly collect any data from anyone, including children under 13.

Changes to this policy

If this policy changes in any meaningful way, the “Last updated” date above will change and the new version will be published at this same URL.

Contact

Questions about this policy? Email logan07night@gmail.com.

© 2026 Disc Tracker. Released under the GPLv3 license. Source: github.com/flyboy-byte/disc-tracker.