# Auth Authenticator vs Proton Authenticator & 2FA

The clearest difference is in-app purchases: Proton Authenticator & 2FA at none against Auth Authenticator's 3. Proton Authenticator & 2FA also leads on update cadence (weekly vs every 5 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Auth Authenticator sells 3 in-app purchases, starting at $9.99 per 7 days. Proton Authenticator & 2FA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Auth Authenticator against 4.4 for Proton Authenticator & 2FA. Both are backed by a comparable volume of ratings — 213 and 314 respectively. Written reviews split almost evenly too, at 57% and 58% positive.

Auth Authenticator ships an update every 5 months, Proton Authenticator & 2FA weekly. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Auth Authenticator | Proton Authenticator & 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (213 ratings)](https://appshunter.io/ios/app/auth-authenticator/id1554760348/reviews) | [4.4 (314 ratings)](https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews) |
| Number of ratings | 213 | **314** |
| Positive reviews | 56.8% of reviews | **57.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 120 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Appios Bilisim](https://appshunter.io/developer/1796567865) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### Auth Authenticator

[App page](https://appshunter.io/ios/app/auth-authenticator/id1554760348)

Secure your online accounts with this Two-Factor Authentication (2FA) app. It generates time-based one-time passwords (TOTP) and offers encrypted backups, multi-device sync, and offline access. Protect your accounts from unauthorized access with robust security features.

**Highlights:** Encrypted iCloud Backup, Apple Watch Support, Multi-Device Sync, Offline Access, Biometric & PIN Lock, Quick Setup, TOTP Security

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription Plans | $9.99 | per 7 days |
| Monthly Subscription Plans | $14.99 | per month |
| Yearly Subscription  Plans | $49.99 | per year |


### Proton Authenticator & 2FA

[App page](https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667)

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

**Highlights:** End-to-end encrypted iCloud sync, Effortless import from other authenticators, Secure backup and export, Swiss privacy by design, Open source and transparent, Offline support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Cross-platform support
- 🔒 Secure cloud sync
- 👍 Easy import from other authenticators
- 🚀 Convenient 'next' feature for codes

**What reviewers complain about**

- 🐛 Buggy UI (scrolling jitters, random sorting)
- 👎 Lack of customization options (pin favorites, change icons)
- 🐛 Sync/login issues on iPad

**Reported bugs**

- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import

**Requested features**

- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons


## Frequently asked questions

### Is Auth Authenticator free?

Auth Authenticator is free to download, with in-app purchases available.

### Is Proton Authenticator & 2FA free?

Proton Authenticator & 2FA is free to download, with no in-app purchases.

### Which has better reviews, Auth Authenticator or Proton Authenticator & 2FA?

Auth Authenticator and Proton Authenticator & 2FA are both rated 4.4 out of 5 on the App Store, from 213 and 314 ratings respectively.

### Do Auth Authenticator or Proton Authenticator & 2FA have ads?

Neither Auth Authenticator nor Proton Authenticator & 2FA shows ads.

### Which is updated more often, Auth Authenticator or Proton Authenticator & 2FA?

Auth Authenticator ships an update every 5 months, and Proton Authenticator & 2FA weekly. Most recently, Auth Authenticator was updated on October 18, 2026 and Proton Authenticator & 2FA on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*