GrapheneOS Backup (unofficial)

Unofficial app. Built and maintained by FTC LLC. Not affiliated with, endorsed by or supported by the GrapheneOS project.

Give GrapheneOS somewhere private to put its backups.

This app is a WebDAV storage target for the backup service built into GrapheneOS. Point a phone at it once and every backup lands in a folder named after its owner, inside Cloudron's own data directory, so it is copied off the box by the platform's backup job instead of a third-party cloud.

Each person on the box gets their own folder, so space per phone is visible and can be capped. Uploads use app passwords only, so a device never holds the account password and can be revoked on its own. A configurable policy removes backups belonging to devices that stopped checking in, and reports the free space left to the phone.

Backup contents are encrypted by the phone: the app stores them and cannot read them.

Support for this app goes to FTC LLC, not to the GrapheneOS project. Report problems at https://git.nostrdev.com/stuff/cloudron-gos-backup/issues.