Comparison · Authenticator apps
Bitwarden Authenticator vs Proton Authenticator: which is better in 2026?
Bitwarden Authenticator84.5#7 in best authenticator apps
Proton Authenticator89.0#2 in best authenticator appsProton Authenticator ranks higher in our list of authenticator apps (#2 against #7, score 89.0 against 84.5).
- 84.5Editorial score89.0
- 2Platforms5
- YesFree to useYes
- YesOpen sourceYes
Which should you choose?
Choose Bitwarden Authenticator if you want
Free mobile 2FA for Bitwarden users.
Free, open-source two-factor app from Bitwarden that needs no account and works on iOS and Android. It is mobile only, and its page does not describe sync or backup.
Choose Proton Authenticator if you want
Encrypted sync across phones, tablets and desktops.
Open-source app with end-to-end encrypted sync and backup across phones, tablets and desktops, plus an Apple Watch app. No browser extension is listed, and the company is Swiss-based.
The main differences
- Only Proton Authenticator runs on Linux.
- Only Proton Authenticator runs on Windows.
- Only Proton Authenticator runs on macOS.
- Bitwarden Authenticator is free and open source; Proton Authenticator is free.
Side by side
| Bitwarden Authenticator | Proton Authenticator | |
|---|---|---|
| Score | 84.5 | 89.0 |
| Rank in list | #7 of 10 | #2 of 10 |
| Price | Free and open sourceFree and open source; no account needed | FreeFree to use and ad-free, according to its site |
| Free to use | Yes | Yes |
| Open source | Yes | Yes |
| Platforms | iOSAndroidiOS, Android | iOSAndroidmacOSWindowsLinuxiOS, Android, macOS, Windows, Linux |
| Made by | Not stated | Proton |
| Backups and sync | Not described on its page | End-to-end encrypted sync and backup |
| Best for | Free mobile 2FA for Bitwarden users | Encrypted sync across phones, tablets and desktops |
| Strengths |
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| Limits |
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| Links | Visit site | Visit site |
Questions about Bitwarden Authenticator vs Proton Authenticator
- Is Proton Authenticator better than Bitwarden Authenticator?
- Proton Authenticator ranks higher in our list of authenticator apps (#2 against #7, score 89.0 against 84.5). Bitwarden Authenticator is best for: free mobile 2FA for Bitwarden users. Proton Authenticator is best for: encrypted sync across phones, tablets and desktops.
- Which is cheaper, Bitwarden Authenticator or Proton Authenticator?
- Bitwarden Authenticator: Free and open source; no account needed. Proton Authenticator: Free to use and ad-free, according to its site.
- Do Bitwarden Authenticator and Proton Authenticator run on the same platforms?
- Bitwarden Authenticator supports iOS, Android. Proton Authenticator supports iOS, Android, macOS, Windows, Linux.
Choosing between the two
Learning Center
1:17How to decide between two good optionsSettle a close call by sorting it by how hard it is to undo, setting a deadline, scoring the criteria as a tie-breaker and writing down why you chose.
1:20How to compare products fairly: what to keep in mindDefine the job, cap the must-haves, compare like with like, count total cost over one period and weigh the criteria. Includes a worked example.Read more about Bitwarden Authenticator and Proton Authenticator
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