Auth Authenticator vs Proton Authenticator & 2FA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Auth Authenticator
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.
- Encrypted iCloud Backup
- Apple Watch Support
- Multi-Device Sync
- Offline Access
- Biometric & PIN Lock
- Quick Setup
- TOTP Security
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Auth Authenticator – Secure 2FA with iCloud Backup & Apple Watch Support Strengthen your account protection with Auth Authenticator, the fast, reliable, and secure Two-Factor Authentication (2FA) app trusted by thousands of users. Generate time-based one-time passwords (TOTP) and keep your online accounts safe from unauthorized access. Whether you're securing your Google, Facebook, Instagram, Microsoft, Amazon, or other important accounts, Auth Authenticator offers an easy, secure, and convenient way to manage all your 2FA codes. Powerful Features of Auth Authenticator: * iCloud Encrypted Backup Securely store your 2FA accounts with automatic iCloud backup. Recover your codes anytime, even if you lose or change your device. * Apple Watch Support View your verification codes right from your Apple Watch — instant access without pulling out your phone. * Multi-Device Sync Seamlessly sync your 2FA accounts across multiple Apple devices, ensuring you’re always connected. * Offline Access Anywhere Generate one-time passwords even when offline or traveling — no internet connection required. * Quick & Easy Setup Add accounts via QR code scan or manual key entry in seconds. * Biometric & PIN Lock Protection Keep your codes safe with Face ID, Touch ID, or a secure PIN. * Works with All Popular Platforms Compatible with Google, Facebook, Instagram, Microsoft, Amazon, Twitter, LinkedIn, GitHub, Dropbox, and any app or service supporting TOTP 2FA. * Time-Based One-Time Password (TOTP) Security Industry-standard TOTP algorithm ensures your codes refresh automatically every 30 seconds for strong, reliable protection. * No Ads, Fully Private Ad-free, privacy-first design — your information stays with you. Why risk your accounts? Get Auth Authenticator today — the trusted, feature-packed 2FA app with iCloud Backup, Apple Watch support, and multi-device sync. Information About Subscription You can cancel your subscription or free trial anytime by cancelling your subscription through your iTunes account settings, or it will automatically renew. This must be done 24 hours before the end of the free trial or any subscription period to avoid being charged. Subscription with a free trial period will automatically renew to a paid subscription. Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. Subscription payments will be charged to your iTunes account at confirmation of your purchase and upon commencement of each renewal term. For more information, please see our Privacy Policy and Terms of Use. Terms of Use: https://sites.google.com/view/auth-terms/ Privacy Policy: https://sites.google.com/view/auth-privacy/
Proton Authenticator & 2FA
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.
- 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
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Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Auth Authenticator | Proton Authenticator & 2FA |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (213 ratings) | 4.4 (314 ratings) |
| Positive reviews | 56.8% of reviews | 57.6% of reviews — better |
| Number of ratings | 213 | 314 — better |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 16 — better | 17.0 |
| Further details — not scored | ||
| Size | 20 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Appios Bilisim | Proton AG |
Customer experience
Auth Authenticator
Proton Authenticator & 2FA
Bugs and requests
Auth Authenticator
Not enough reviews yet to summarise bugs or requests.
Proton Authenticator & 2FA
Reported bugs
4 issues- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import
Requested features
5 requests- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons
In-app purchases
Auth Authenticator
- Weekly Subscription Plans3 Days trial$9.997 Days
- Monthly Subscription Plans$14.991 Month
- Yearly Subscription Plans3 Days trial$49.991 Year
Proton Authenticator & 2FA
No in-app purchases
Questions
Is Auth Authenticator free?
Is Proton Authenticator & 2FA free?
Which has better reviews, Auth Authenticator or Proton Authenticator & 2FA?
Do Auth Authenticator or Proton Authenticator & 2FA have ads?
Which is updated more often, Auth Authenticator or Proton Authenticator & 2FA?
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