Privacy Policy
Overview
Yield is an offline-first Android application. It does not connect to the internet, does not collect personal information, and does not transmit any data to external servers or third parties. All data you create in Yield stays on your device.
Information We Collect
Yield does not collect any personal information. The app stores the following data locally on your device using MMKV, a fast key-value store private to the app:
- Item records (name, description, sourcing details, status)
- Condition evaluation records (condition grade, purchase price, list price, notes)
- Prospect entries you add to your watchlist
- App settings and preferences
None of this data is linked to your identity, uploaded anywhere, or shared with any third party.
How We Use Your Data
Data stored by Yield is used solely to operate the app's features on your device:
- Displaying and organizing your inventory and evaluation history
- Calculating pricing estimates and return margins
- Showing portfolio insights on the dashboard
- Restoring app state between sessions
Export & Import
Yield includes an optional export feature that shares your ledger data as a JSON file via Android's standard share sheet (expo-sharing). Import is handled through Android's system file picker (expo-document-picker / Storage Access Framework). Neither process routes data through any server — all file operations are local and on-device. You choose what you do with exported files.
Permissions Required
Yield requires minimal Android permissions:
- Storage Access Framework — used for the optional import and export features. This does not require a broad storage permission; Android manages file access through the system file picker and share sheet
Yield does not request access to your contacts, location, camera, microphone, notifications, or any other sensitive system resource.
Data Storage & Security
All app data is stored in MMKV, a sandboxed local storage layer private to Yield and not accessible to other apps. This data is removed when you uninstall Yield. If you have Android's built-in backup enabled, your device OS may back up app data to your Google account; this is governed by Google's privacy policy, not ours.
Data Sharing
Yield does not share any data with third parties. There are no analytics SDKs, crash reporting services, advertising networks, or external APIs integrated into the app.
Deleting Your Data
You can delete all data stored by Yield at any time by clearing the app's data in your Android settings (Settings → Apps → Yield → Storage → Clear Data), or by uninstalling the app.
Children's Privacy
Yield does not knowingly collect any information from children. The app collects no personal information from any user, regardless of age.
Changes to This Policy
If this privacy policy changes, the updated version will be published at this URL with a revised effective date. Continued use of Yield after any changes constitutes acceptance of the updated policy.
Contact
If you have questions about this privacy policy, you can reach us at: github.com/EnigmaMachineDev