Notes 
Features: End-to-end encrypted cloud backups and multi device synchronization. Offline mode and import & export tokens. It’s the only open-source solution that is available for both Android and iOS.
Reviewed by Gabriel Bachmann
ente Authenticator
ente.com/auth 4.9 (7)
Rate ente Authenticator: No account needed
Threat level
Covered
A covered pick. Anyone can use it as a private drop-in, with no setup or know-how. Enough for most people. Threat levels
Our take
Ente Authenticator is the rare open-source 2FA app that does end-to-end encrypted cloud backup and syncs across both Android and iOS, which solves the new-phone headache that trips up offline-only apps. You are trusting Ente’s servers to hold your encrypted backup, but the encryption is the point and an offline mode exists if you would rather not. For people who want their codes to survive a lost phone and follow them between platforms, this is the easy recommendation.
GitHub at a glance
ente/ente AGPL-3.0 2faandroidauthye2eeencryptionend-to-end-encryptionfluttergolanggoogle-photosgoogle-photos-alternativeiosopensourcephotosprivacyprivacy-toolstypescriptzero-knowledge
Stars
29,872
+187 this week
Forks
1,894
80 watching
Last commit
today
healthy
Latest release
photos-v1.3.68
1d ago, 100+ total
Star history
Issues
89% closed
183
open
1,543
closed
+29 / -34
opened / closed, last 4 weeks
Opened vs closed, last 12 weeks
Commits, last 26 weeks
10,873 commits, active 26 of 26 weeks
372 contributors since Nov 2022
Languages
- Dart 36.8%
- TypeScript 26.4%
- Rust 18.7%
- Other 18.1%
Updated daily from the GitHub API. Star tracking since Jun 10, 2026.
Website at a glance
ente.com
B+ score 80
Solid website security headers
Graded by Mozilla HTTP Observatory, tested 4d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
ente Authenticator alternatives
Aegis Authenticator Aegis Authenticator: Encryption, Organization and Backups for Android
2FAS Features: Device synchronization, modern user-interface and backups. The main advantages are the browser extensions that enable one-tap authentication and no need to switch…
Tofu Tofu: Easy-to-use and designed specifically for iOS
Raivo OTP Unlisted for now because Raivo was sold, and the new owner wasn't able to clarify concerns listed in the GitHub discussion. The warning will be removed once the situation is…
Yubico Authenticator A TOTP authenticator app that stores one-time password secrets on a YubiKey hardware key rather than on the device, available on Windows, Mac, Linux, and Android.
ente Authenticator license, in plain English
AGPL-3.0 Strong copyleft · network
Free to use, even commercially. Changes must be published under the same license, and running a modified version as a network service counts as distributing it.
Permits
- Commercial use
- Modification
- Distribution
- Patent use
- Private use
Requires
- Disclose source
- Network use is distribution
- Same license
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: The network clause is the point. Anyone who runs a modified version as a hosted service has to publish those changes, so the code handling your data stays inspectable. This is why privacy-first projects reach for AGPL.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.