Proton Authenticator vs Diff Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Diff Checker
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Easily figure out the differences between two pieces of text with Diff Checker - Compare Text, your go-to tool for accurate text comparison on iPhone & iPad. Whether you’re a writer, coder, editor, or student, this app helps you to identify even the smallest difference between two text paragraphs. Simply paste or import your content into two boxes and click on the Compare button to see the difference. *Key Features - Instant Comparison: Paste or import text in two boxes to see exactly what’s changed. - Highlighted Differences: Modified paragraphs and words are clearly highlighted for easy understanding. - Import Support: Quickly bring in text files or documents from your device. - Precise and Fast: Detects even minor edits, extra spaces, or punctuation changes. You can use the app for the following scenarios. *Code comparison:- App now supports code comparison which means, you can easily identify difference between two different codes. *Text to text comparison:- Compare two texts and find the diff between text using this tool. *Compare string:- Text comparison tool for comparing difference between strings. Perfect for proofreading, version tracking, or verifying edits — Diff Checker - Compare Text makes comparison simple, visual, and efficient. NB: After free trial period, active subscription is required to access the app features fully. Privacy Policy:- https://edusoft.co.nz/diffonline-privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Proton Authenticator at none against Diff Checker's 2. Proton Authenticator also leads on update cadence (weekly vs fortnightly). Diff Checker's advantage is iOS requirement (13.0 vs 17.0). On price, ads 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. Diff Checker sells 2 in-app purchases, starting at $7.99 per month. Proton Authenticator asks for nothing beyond the download.
Proton Authenticator ships an update weekly, Diff Checker fortnightly. The most recent releases landed on September 28, 2026 and September 11, 2026 respectively.
| Parameter | Proton Authenticator | Diff Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (242 ratings) — better | — |
| Positive reviews | 56.3% of reviews | — |
| Number of ratings | 242 — better | — |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 119 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Proton AG | Edusoft Limited |
Bugs and requests
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
Diff Checker
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Proton Authenticator
No in-app purchases
Diff Checker
- Premium Subscription Monthly3 Days trial$7.991 Month
- Premium Subscription Yearly3 Days trial$49.991 Year
Questions
Is Proton Authenticator free?
Is Diff Checker free?
Do Proton Authenticator or Diff Checker have ads?
Which is updated more often, Proton Authenticator or Diff Checker?
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