Proton Authenticator & 2FA vs KaChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
KaChat
This secure messaging app utilizes the Kasia protocol over the KASPA BlockDAG network for instant communication. It offers a private and efficient way to connect with others.
- Secure instant messaging
- Kasia protocol integration
- KASPA BlockDAG network
- Private communication
- Efficient messaging
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KaChat is instant messaging app based on Kasia protocol over KASPA BlockDAG network.
Screenshots
Verdict
The clearest difference is review sentiment: KaChat at 94% against Proton Authenticator & 2FA's 58%. KaChat also leads on rating (4.9 vs 4.6). Proton Authenticator & 2FA's advantage is ratings volume (710 vs 39). On price, update cadence, ads and in-app purchases 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.
KaChat holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Proton Authenticator & 2FA has 710 ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 58% of Proton Authenticator & 2FA's written reviews are positive against 94% of KaChat's.
Proton Authenticator & 2FA ships an update weekly, KaChat every 9 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | Proton Authenticator & 2FA | KaChat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (710 ratings) | 4.9 (39 ratings) — better |
| Positive reviews | 57.6% of reviews | 94.4% of reviews — better |
| Number of ratings | 710 — better | 39 |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 120 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Proton AG | Cyber Ventures LLC |
Customer experience
Proton Authenticator & 2FA
KaChat
Bugs and 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
KaChat
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Proton Authenticator & 2FA
No in-app purchases
KaChat
No in-app purchases
Questions
Is Proton Authenticator & 2FA free?
Is KaChat free?
Which has better reviews, Proton Authenticator & 2FA or KaChat?
Do Proton Authenticator & 2FA or KaChat have ads?
Which is updated more often, Proton Authenticator & 2FA or KaChat?
Other comparisons
