BackupCheck Privacy Policy
Last updated: September 21, 2026
atelier-flare ("we") respects your privacy in your use of the iOS app BackupCheck ("the App") and handles information in accordance with the following policy. The App never sends your data to any server, including ours.
1. Photo Library Access
- Photo library (read): To back up your photos and videos, the App asks for read access to your entire library. Photos and videos it reads (including HEIC, HEVC, Live Photos, RAW, and unedited originals) are copied unmodified to the external storage you have registered.
- Photo library (add): Add access is used only when you use the Restore feature to bring photos from external storage back to your iPhone.
2. Information Stored on Your External Storage
The storage you choose (a USB-C drive, or a NAS on the same network) will hold the following:
- The photo and video files themselves
- Files recording metadata such as capture date, camera model, and location, plus thumbnails for display
- A random ID that identifies this iPhone
All of this lives on storage that you control; we have no access to it. Keep this in mind if you share the storage with other people.
3. USB Storage Access
For USB-C storage, the App accesses only the folder you select through the iOS file picker (Document Picker). Access to that folder is saved on your device as a security-scoped bookmark so the same folder can be used next time.
4. Local Network and NAS Credentials
To back up to a NAS (SMB share), the App uses local network access and Bonjour to discover SMB servers. Communication happens only between your iPhone and the NAS you specify; no server on the internet is involved.
Your NAS user name and password are stored only in the iPhone Keychain. They are not synced to iCloud Keychain and never leave the device.
5. Information Stored on Your Device
- Identifiers of backed-up photos and the run history (used for incremental backups and statistics)
- Details of registered storage and the App's settings
- Diagnostic logs of the App's operation. They contain no photo content and are never sent automatically
These are stored only in the App's own area on your iPhone.
6. Integration with Our Companion App RollCheck
If RollCheck, another app by the same developer, is installed, the App writes a list of identifiers showing which photos have been backed up to which storage into a shared area on the device (App Group) that only these two apps can read. No photo content or metadata is shared. This integration is entirely on-device and does not use the network.
7. Notifications
Backup completion notices and reminders when you have not run a backup for a while are local notifications generated on the device. No push notification server is used.
8. Tracking, Advertising, and Analytics
The App contains no analytics, advertising, or user-tracking mechanisms of any kind. It does not collect personal information or provide it to third parties.
9. Data Deletion
Uninstalling the App deletes the backup records, settings, and diagnostic logs stored on your device. NAS credentials are removed from the Keychain when you remove that storage inside the App (they are kept while another registration refers to the same share). Because Keychain items may remain after uninstalling alone, remove the NAS registration first when you are done using it. Files already copied to external storage must be deleted by you.
10. Contact
If you have any questions about this policy, please contact us at:
- Contact: support@atelier-flare.com
11. Changes to This Policy
We may revise this policy as necessary without prior notice. The revised policy takes effect when posted on this page.