We built an authenticator app[1] that is open source[2] and offers end-to-end encrypted[3] backups.
Since launch[4], the product has evolved a bit[5][6].
Auth is now available on Android, iOS, Linux, Mac and Windows[7]. We also have a read-only companion app for the web[8].
Backups are optional and free. You can use all our apps (minus the web) without an account.
You can also self-host[9] if you wish.
Please check out Auth, we'd be grateful for any feedback!
[1]: https://ente.io/auth
[2]: https://github.com/ente-io/ente
[3]: https://ente.io/architecture
[4]: https://ente.io/blog/auth/
[5]: https://ente.io/blog/auth-v2/
[6]: https://ente.io/blog/auth-v3/
[7]: https://github.com/ente-io/ente/releases?q=tag%3Aauth-v3
[8]: https://auth.ente.io