# Proton Authenticator & 2FA vs KaChat

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 (741 vs 39). On price, update cadence, ads and in-app purchases there is nothing between them.

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 741 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 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Proton Authenticator & 2FA | KaChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (741 ratings)](https://appshunter.io/ios/app/proton-authenticator-and-2fa/id6741758667/reviews) | **[4.9 (39 ratings)](https://appshunter.io/ios/app/kachat/id6759102359/reviews)** |
| Number of ratings | **741** | 39 |
| Positive reviews | 57.6% of reviews | **94.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free | Free |
| Size | 120 MB | 58 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Proton AG](https://appshunter.io/developer/979659484) | [Cyber Ventures LLC](https://appshunter.io/developer/1841001762) |

## What reviewers say

### 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


### KaChat

[App page](https://appshunter.io/ios/app/kachat/id6759102359)

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.

**Highlights:** Secure instant messaging, Kasia protocol integration, KASPA BlockDAG network, Private communication, Efficient messaging

**Features:** Siri integration, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Proton Authenticator & 2FA free?

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

### Is KaChat free?

KaChat is free to download, with no in-app purchases.

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

KaChat is rated higher. Proton Authenticator & 2FA averages 4.6 out of 5 from 741 ratings, while KaChat averages 4.9 from 39 ratings.

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

Neither Proton Authenticator & 2FA nor KaChat shows ads.

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

Proton Authenticator & 2FA ships an update weekly, and KaChat every 9 days. Most recently, Proton Authenticator & 2FA was updated on November 8, 2026 and KaChat on November 5, 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.*