Proton Proton Authenticator: customer experiences
Reviewers report that Proton Authenticator has seen a steady improvement in user satisfaction over the past year, with overall sentiment trending strongly positive. Out of 1650 mentions, 1070 are positive and 343 are negative, indicating a clear majority of users are satisfied. The app’s rating has climbed from 3.84 stars in September 2025 to a high of 4.61 in March 2026, with consistent performance above 4.0 stars since early 2026. Users frequently praise its privacy focus, cross-platform availability, and reliability. However, some recurring issues, particularly around QR code scanning, sync behavior, and backup limitations, have drawn criticism. While these problems remain, they appear to be less frequent or less severe in recent feedback, suggesting ongoing improvements. The overall trend shows growing confidence in the app despite lingering technical hurdles.
What customers praise
Users consistently highlight Proton Authenticator’s strong privacy stance and open-source nature as major strengths. Many appreciate that it works reliably with services requiring Google Authenticator, and that it supports sync across multiple devices without ads. The ability to view the next code in advance is seen as a useful feature, especially during time-sensitive logins. Several reviewers call it the best authenticator they’ve used, praising its simplicity and trustworthiness.
What customers said:
- „is more trustworthy“
- „Its simple, and it works.“
- „codes could only be restored back to its own app“
Common complaints
Several users report that the QR code scanner fails to recognize valid codes, even when other apps like Microsoft Authenticator work fine. Some describe the manual setup process as confusing and prone to generating invalid codes. A recurring issue is the lack of clear guidance about sync requiring a second device, which leads to frustration when setup fails. Others note that the app does not allow exporting codes via QR, a feature available in competing apps.
What customers said:
- „QR scanner doesn't work.“
- „Still zero reaction when I point the camera towards a Google Authenticator export QR code“
- „No option to export via QR code even though Google authenticator has that.“
How it has changed over time
The app’s rating has steadily improved since late 2025, rising from 3.84 stars to a peak of 4.61 in March 2026. While some negative feedback about crashes and scanning issues persists, the volume of 1-star reviews has declined relative to the total. Recent feedback shows fewer complaints about core functionality, suggesting that Proton has addressed key bugs. The app’s growing reputation as a privacy-focused alternative to mainstream options appears to be gaining traction among users who value transparency and cross-platform support.
What customers said:
- „IT DOES NOT SPECIFY THAT SYNC NEEDS A 2ND DEVICE TO DO ANYTHING.“
- „Pass suddenly stopped generating codes“
- „Microsoft Authenticator instantly scanned all three codes that Proton couldn't.“
Practical takeaways
For users prioritizing privacy and cross-platform sync, Proton Authenticator remains a top choice, especially on Linux and non-Android platforms. However, those relying on QR code imports should be prepared for potential scanning failures and may need to use manual entry. The lack of backup options means users should treat the app as non-critical for essential accounts unless they have a recovery plan. Overall, the app is stable and reliable for most, but those needing advanced features like code export or reliable QR support may still prefer alternatives.
What customers said:
- „Excellent app“
„Excellent app“
Original„Hervorragende App“
- „The Proton app shows the next code, this saves having to wait for the next one to…“
„The Proton app shows the next code, this saves having to wait for the next one to appear if time is running out“
- „Proton's solution only lets you see 5 accounts on the first page.“
„Proton's solution only lets you see 5 accounts on the first page.“
Original„la solution de Proton ne permet de voir que 5 comptes sur la première page“
Over time
Data as table
| Month | Avg. rating | Count |
|---|---|---|
| 2025-09 | 3.84 | 127 |
| 2025-10 | 4.14 | 131 |
| 2025-11 | 4.21 | 94 |
| 2025-12 | 4.54 | 69 |
| 2026-01 | 4.09 | 79 |
| 2026-02 | 4.24 | 90 |
| 2026-03 | 4.61 | 77 |
| 2026-04 | 4.33 | 72 |
| 2026-05 | 4.42 | 86 |
| 2026-06 | 4.13 | 70 |
| 2026-07 | 4.60 | 108 |
| 2026-08 | 4.41 | 66 |
Sentiment over time
Data as table
| Month | Positive | Neutral | Negative | Count |
|---|---|---|---|---|
| 2025-09 | 57% | 11% | 32% | 127 |
| 2025-10 | 67% | 15% | 18% | 131 |
| 2025-11 | 72% | 11% | 17% | 94 |
| 2025-12 | 81% | 9% | 10% | 69 |
| 2026-01 | 63% | 19% | 18% | 79 |
| 2026-02 | 71% | 11% | 18% | 90 |
| 2026-03 | 87% | 6% | 6% | 77 |
| 2026-04 | 78% | 4% | 18% | 72 |
| 2026-05 | 76% | 9% | 15% | 86 |
| 2026-06 | 69% | 10% | 21% | 70 |
| 2026-07 | 82% | 9% | 10% | 104 |
| 2026-08 | 82% | 5% | 14% | 44 |
Customer voices
Short excerpts - full reviews are available at the original source.
„Best Authenticator app I have ever used.“
„It works almost anywhere that asks for Goo.gle Authenticator“
„For me, an authenticator is better security than passkeys“
„I love it, transferring my data from Google Authenticator was seamless“
„better than Google Authenticator“
„A super simple, open-source app.“
„Much better than Google Authenticator“
„Great replacement for my previous authenticator app“
What Reddit users discuss
Below are extracts from Reddit which discuss Proton Authenticator in more detail - each linked to the original thread.
„You can basically use any Authenticator like 2FAS, Proton or others based on your convenience“
„Once you open the Proton Authenticator app, go to the app's Settings → enable 'Sync between devices' → this will prompt you to log in by ...“
„I actually suggest you get another authenticator for your Proton account.“
„can't use Proton Auth for Proton it's self“
„Proton Authenticator is a standalone Two-Factor Authentication (2FA) app.“
Cite this page
Citatio (2026). Proton Proton Authenticator: customer reviews 2026. Retrieved 18 August 2026 from https://citatio.ai/proton-reviews/products/proton-authenticator/
Data verifiable via our public audit log: Methodology · Transparency