Data Processing
On-device Processing
Photos and item recognition are processed directly on your device. This means your images never leave your phone unless you explicitly choose to share them.
Local Storage
App data is stored locally on your device. If you enable iCloud sync, your data will also be stored in your personal iCloud account, which is encrypted and controlled by Apple.
No Sale of Data
I do not sell, rent, or share your personal data with third parties for their marketing purposes.
What Data May Be Collected
Crash Reports
If the app crashes, anonymous crash data may be collected through Apple's standard crash reporting. This helps me identify and fix bugs. You can opt out of sharing this data through your iOS Settings → Privacy → Analytics.
App Store Analytics
Apple provides aggregated, anonymous analytics about app usage through App Store Connect. This includes data like downloads, active devices, and general usage patterns — but not personal information.
Third-Party Services
Currently, EngTwin apps do not integrate third-party analytics or tracking services. If this changes in the future, this policy will be updated to reflect any new services and their data practices.
Your Rights
You have the right to:
- Access the personal data I hold about you (though for offline-first apps, this is typically just what's on your device)
- Request deletion of your data
- Export your data where technically feasible
- Withdraw consent for any data processing
Data Retention
Since data is stored on your device, it remains there until you delete it or uninstall the app. iCloud data follows Apple's retention policies and can be managed through your iCloud settings.
Children's Privacy
EngTwin apps are not directed at children under 13. I do not knowingly collect personal information from children under 13. If you believe a child has provided personal information, please contact me so I can take appropriate action.
Contact
For privacy-related questions or requests:
Changes to This Policy
If I change how data is processed, I will update this page and the App Store privacy details accordingly. Significant changes will be communicated through app updates or in-app notices where appropriate.