NordLocker vs Proton Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NordLocker
Securely store and encrypt your photos, videos, and files in the cloud or locally. This app offers end-to-end encryption and zero-knowledge architecture, ensuring only you have access to your data. Share files securely with others while maintaining complete control.
- End-to-end file encryption
- Zero-knowledge cloud storage
- Local encryption tool
- Secure file sharing
- Cross-device syncing
- Access control
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NordLocker is an encrypted cloud storage app that puts privacy first. Store your files in a securely encrypted cloud that provides maximum protection from data leakage. Why NordLocker? NordLocker was built by the team behind NordVPN, the world’s most popular VPN. As a company, we strive to build the best cybersecurity tools anyone could use. That’s why NordLocker has been recognized by the Cyber Security Awards as the Cloud-Based Product of the Year. Our secure storage uses an end-to-end encryption algorithm to secure your files in the cloud. All data is encrypted with a unique key that gives you complete access control. Encrypted at all times Protect your precious files, upload them to the cloud storage, or sync them across your devices for easy access. And even when files are synced to a shared device, your data stays private. Because no one can see or access your data without your permission. When it comes to sharing files, you can securely share any file or folder via NordLocker in just two steps. Share your files with however many people you like, and wait until they accept your invitation. NordLocker offers an option to share your files via a securely generated link that encrypts the file in transit. You always remain the owner of your files and can stop sharing it whenever you want. Hassle-free security Upload your files into NordLocker, and they’re encrypted instantly. Make NordLocker what you want it to be — media or other files storage for sensitive data. Your data is yours only What's yours is yours. That's why we believe using a cloud app should never be based on trust. Unlike mainstream cloud providers, we can never see your encryption keys or know what you store in your cloud. NordLocker is built on zero-knowledge architecture, meaning we know nothing about what you store in your cloud. Not only is this more secure, but it also gives you complete access control. Download NordLocker and protect your digital assets now!
Proton Authenticator
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 review sentiment: Proton Authenticator at 56% against NordLocker's 10%. Proton Authenticator also leads on rating (4.4 vs 3.7) and monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Proton Authenticator holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Proton Authenticator has 242 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 10% of NordLocker's written reviews are positive against 56% of Proton Authenticator's.
NordLocker ships an update every 4 weeks, Proton Authenticator weekly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | NordLocker | Proton Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (13 ratings) | 4.4 (242 ratings) — better |
| Positive reviews | 9.6% of reviews | 55.7% of reviews — better |
| Number of ratings | 13 | 242 — better |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 67 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordvpn S.A. | Proton AG |
Customer experience
NordLocker
Proton Authenticator
User reviews
NordLocker
From 13 App Store ratingsWhat we love
- 🔒 Secure encryption
- 👍 Decent free storage plan
- 🚀 Improving with updates
Room to improve
- 🐛 Crashes and freezes
- 👎 Clunky and unintuitive UI
- 🕰️ Slow file uploads/downloads
- 🔒 Excessive password requirements
Proton Authenticator
From 242 App Store ratingsWhat we love
- 🚀 Cross-platform support
- 🔒 Secure cloud sync
- 👍 Easy import from other authenticators
- 🚀 Convenient 'next' feature for codes
Room to improve
- 🐛 Buggy UI (scrolling jitters, random sorting)
- 👎 Lack of customization options (pin favorites, change icons)
- 🐛 Sync/login issues on iPad
Bugs and requests
NordLocker
Reported bugs
3 issues- Login issues and recovery key problems
- Compatibility problems on newer devices
- Inconsistent file sync and upload failures
Requested features
5 requests- Add thumbnail previews for files
- Allow batch/folder uploads
- Implement biometric login
- Integrate with native Files app
- Add dark mode option
Proton Authenticator
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
NordLocker
No in-app purchases
Proton Authenticator
No in-app purchases
Questions
Is NordLocker free?
Is Proton Authenticator free?
Which has better reviews, NordLocker or Proton Authenticator?
Do NordLocker or Proton Authenticator have ads?
Which is updated more often, NordLocker or Proton Authenticator?
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