PrivacyTools.io
Reviewed by Gabriel Bachmann
Aegis Authenticator logo

Aegis Authenticator

getaegis.app
5.0 (10)
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Aegis Authenticator: Encryption, Organization and Backups for Android

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

Screenshot of the Aegis Authenticator website
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Our take

Aegis is the one to pick if you are on Android and want your 2FA codes stored encrypted and backed up under your own control, with no cloud account in the loop. The flip side of offline-only is that moving to a new phone is a manual export-and-import you have to remember to do, and there is no iOS version at all. For Android users who want open-source, encrypted, account-free authentication, it is the standout choice.

GPL-3.0 2faandroidauthenticatorencryptionfingerprinthotpotpsecuretotp
Stars
13,461
+57 this week
Forks
613
110 watching
Last commit
2mo ago
healthy
Latest release
v3.4.3
2mo ago, 74 total
Star history
Issues
91% closed
118
open
1,159
closed
+7 / -3
opened / closed, last 4 weeks
Opened vs closed, last 12 weeks
Commits, last 26 weeks
6 commits, active 3 of 26 weeks
62 contributors since Aug 2016
Languages
  • Java 95.9%
  • HTML 2.4%
  • Roff 1.6%
Updated daily from the GitHub API. Star tracking since Jun 15, 2026.
Website at a glance
getaegis.app
B score 75
Solid website security headers
Graded by Mozilla HTTP Observatory, tested 1d ago

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.

Aegis Authenticator alternatives

Aegis Authenticator license, in plain English
GPL-3.0
Strong copyleft

Free to use and modify, but anything you distribute that is built on it must also be open under the same license.

Permits

  • Commercial use
  • Modification
  • Distribution
  • Patent use
  • Private use

Requires

  • Disclose source
  • Same license
  • State changes
  • License and copyright notice

Does not provide

  • Liability cover
  • Warranty

Why it matters: Strong copyleft keeps every distributed version open. A vendor cannot fold this into a closed product and ship it without releasing their changes.

Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.