Last updated: 26 September 2026
Privacy Policy
The short version. Denge looks at your photos and documents on your iPhone, and nothing it looks at is ever uploaded, to us or anyone else. There is no account, no analytics, no crash reporting and no advertising, and heyisoft runs no servers that receive your data.
Two things do leave the device: an approximate location (never a photo, never its exact position) sent to Apple to look up city names, which you can switch off, and purchase information with an anonymous identifier, used to check whether Denge Pro is active.
1. Who we are
Denge ("the app") is developed and published by heyisoft ("we", "us"). For any privacy matter, write to heyisoft@gmail.com.
2. What this policy covers
This policy covers the Denge app for iPhone and this website. It explains what the app handles, where that happens, and the choices you have.
3. Information the app handles
| Data | Where it lives | Purpose |
|---|---|---|
| Your photos and videos | On your device. Read from your photo library with your permission and analysed on the iPhone with Apple Vision. Never uploaded | Sorting the library into categories and finding shots to clean up |
| What the app works out from your photos: labels, categories and similarity fingerprints | On your device only, in an index kept in the app's own storage. Never uploaded | Showing categories and grouping similar shots |
| Small thumbnails of items you deleted in the app | On your device only. You can clear the list in the app | The "Deleted here" history |
| An approximate location: the centre of a grid cell roughly 5 km across | Sent to Apple's reverse-geocoding service (Apple Maps). Never a photo's exact position and never the photo itself. Can be switched off | Showing city names |
| Documents in folders you choose | On your device. Files stay where they are. A little text is extracted on the device, including with text recognition (OCR). Nothing is uploaded | Sorting documents by topic |
| Files you share to the app with the share sheet or "Open in" | Copied into the app's own "Received" folder, which you can see in the Files app under On My iPhone. Nothing is uploaded | Including them in the Documents tab |
| Subscription status and purchase information | Payment is handled by Apple. Whether Denge Pro is active is checked through RevenueCat, which receives purchase information and an anonymous identifier the app generates. No name, email, photos or documents | Unlocking Denge Pro and restoring it |
4. What we do not collect
- No photos, videos or documents, and nothing derived from them. They never leave your iPhone.
- No account, sign-up, name, email address or phone number.
- No analytics and no crash-reporting tools.
- No advertising, no advertising identifiers, and nothing is ever sold.
- No biometric data. See Face ID below.
5. Place names, and how to switch them off
To show which city a photo was taken in, the app rounds the location to the centre of a grid cell roughly 5 km across and sends only that point to Apple's reverse-geocoding service, which returns a place name. The exact position of a photo, and the photo itself, are never sent. Apple handles this request under Apple's privacy policy.
You can switch this off in the app's Settings with the Look Up Place Names switch under Places. From then on, nothing is sent.
6. Permissions and system features
- Photos. Needed to read and organise your library. Deleting always goes through the iOS confirmation prompt, and deleted items go to Recently Deleted in the Photos app.
- Files. The app only reads folders you explicitly choose in the Files picker.
- Face ID. Optional, to lock the app. It is handled entirely by iOS. The app only learns whether unlocking succeeded, never any biometric data.
- Notifications. Optional, for a weekly summary. It is scheduled on the device; nothing is sent through any server.
- Background processing. Scanning can continue in the background, on the device.
7. Albums in Apple Photos
The albums Denge keeps up to date are created in your Photos library, in a folder called Denge. They stay in your library until you delete them, including if you delete the app.
8. Retention and deleting your data
- The index and the "Deleted here" history stay on your device until you clear them in the app or delete the app.
- Deleting the app removes its local data. Albums it created in Photos stay until you delete them.
- Purchase records are held by Apple under Apple's terms, and subscription status by RevenueCat under RevenueCat's privacy policy.
9. Your rights
Depending on where you live, you may have the right to access, correct, delete or export your personal data. We hold no personal data about you, because the app keeps everything on your device. If you have a request or a question, write to heyisoft@gmail.com.
10. Children
Denge is not directed at children under 13.
11. Changes
We may update this policy as the app changes. Material changes will appear here with a new "last updated" date.
12. Contact
heyisoft, heyisoft@gmail.com. See also Contact and support.