Aegis Authenticator

A free, open-source Android authenticator with an encrypted vault, imports from other apps and automatic backups.

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Verified facts: 5 of 5
Alternatives ranked: 5
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About Aegis Authenticator

Aegis is the authenticator many privacy-minded Android users recommend. Your tokens live in an encrypted vault (AES-256-GCM) that unlocks with a password or biometrics, and screen capture can be blocked. It supports TOTP, HOTP and Steam codes, and can import from a long list of other apps, including Google Authenticator, Microsoft Authenticator, Authy, 2FAS, FreeOTP and andOTP, although some imports need root access. Organisation is a strength: groups, custom or automatic icons, icon packs, search, sorting and several themes including a true black AMOLED mode. Instead of a cloud service, Aegis makes automatic encrypted backups to a folder of your choosing, which you can point at a synced location, and you can export plain or encrypted files at any time. It is free with no ads, licensed under GPL-3.0, and available from Google Play and F-Droid. The catch is the platform: it is Android only, with no iOS, desktop or browser versions, so people who need codes on several devices must look elsewhere.

Best for: Android users who want a private, fully local authenticator with good backups.

What works

Strong encrypted vault with biometric unlock
Imports from most other authenticator apps
Automatic encrypted backups to a folder you choose
Free, open source and ad-free

Why people leave

Android only
No built-in cloud sync between devices
Some imports need root access

Top Aegis Authenticator alternatives

See all 5

1
2FAS Auth
Also free and open source, but on iOS too with a browser extension.
66.5
2
Ente Auth
Open source with end-to-end encrypted sync across phone, desktop and web.
62.6
3
Stratum
Another open-source Android app, adding a Wear OS companion.
59.6
4
FreeOTP+
Simpler open-source Android app with Google Drive backup.
57.2
5
Proton Authenticator
Open-source, with encrypted sync and apps on every major platform.
55.3

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Aegis Authenticator: common questions

Is Aegis Authenticator free?

Yes. Aegis Authenticator is free, open-source software.

Is Aegis Authenticator open source?

Yes. The source code is on GitHub at beemdevelopment/Aegis.

What platforms does Aegis Authenticator run on?

Aegis Authenticator is available for Android.

What are the best alternatives to Aegis Authenticator?

The highest-ranked Aegis Authenticator alternatives right now are 2FAS Auth, Ente Auth and Stratum. See the full ranked list for pricing, platforms and verified facts.

See all 5 Aegis Authenticator alternatives

Aegis Authenticator facts

5 of 5 verified

License: GPL-3.0; Checked Oct 25, 2026github.com(opens source in a new tab); “License: GPL-3.0 (GNU General Public License v3.0).”
Vault encryption: AES-256-GCM; Checked Oct 25, 2026github.com(opens source in a new tab); “The vault is encrypted (AES-256-GCM)”
Imports: Authy, Google, Microsoft, 2FAS and more; Checked Oct 25, 2026github.com(opens source in a new tab); “Import from other authenticator apps: 2FAS Authenticator, Authenticator Plus, Authy, andOTP, FreeOTP, FreeOTP+, Google Authenticator, Microsoft Authenticator”
Distribution: Google Play and F-Droid; Checked Oct 25, 2026github.com(opens source in a new tab); “Aegis is available on the Google Play Store and on F-Droid.”
Backups: Automatic, to a location you choose; Checked Oct 25, 2026github.com(opens source in a new tab); “Automatic backups of the vault to a location of your choosing”