head to head · open source
Aegis Authenticator vs 2FAS
Aegis Authenticator has 13,111 GitHub stars, 590 forks, 120 open issues and last shipped 12 days ago. 2FAS has 1,514 stars, 130 forks, 125 open issues and last shipped 3 days ago. Aegis Authenticator leads on adoption by 766% (13,111 vs 1,514 stars). Aegis Authenticator is written in Java under GPL-3.0; 2FAS is written in Kotlin under GPL-3.0. Aegis Authenticator has attracted 5% as many forks as stars, 2FAS 9%. 2FAS was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Aegis Authenticator | 2FAS | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 1.5K |
| License | GPL-3.0 | GPL-3.0 |
| Written in | Java | Kotlin |
| Last push | 2026-09-06 | 2026-09-15 |
| Forks | ⑂ 590 | ⑂ 130 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Aegis Authenticator if
- You weight community size — 13K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick 2FAS if
- You want the 2FAS feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Kotlin
- You evaluated both and 2FAS fits your workflow better
About Aegis Authenticator
Aegis Authenticator is a free and open source Android application for managing two step verification tokens. It is written in Java and released under the GPL 3.0 license, and it belongs to the Android productivity and secret management ecosystem.
read the full Aegis Authenticator overview →
About 2FAS
2FAS is an open source Android application for two factor authentication, and its listing describes it as a local first 2FA authenticator and password manager. The project lives in the password and secret management ecosystem, and the repository contains the source code for the 2FAS Auth Android app, written in Kotlin and licensed under the GNU General Public License v3.0. The README presents 2FAS as an authentication method that adds a second factor, such as a one time password shown on a phone, alongside a username and password.
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Frequently asked questions
Is Aegis Authenticator or 2FAS more popular?
Aegis Authenticator has 13,111 GitHub stars and 2FAS has 1,514. Aegis Authenticator has the larger community by that measure.
Are Aegis Authenticator and 2FAS free?
Both are open source. Aegis Authenticator is licensed under GPL-3.0 and 2FAS under GPL-3.0. Neither carries a licence fee.
What is the difference between Aegis Authenticator and 2FAS?
Aegis Authenticator is written in Java and 2FAS in Kotlin. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Aegis Authenticator or 2FAS?
Choose Aegis Authenticator if you want the larger community (13,111 stars) or its GPL-3.0 licence terms. Choose 2FAS if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.