# Yubico Authenticator vs KaChat

The clearest difference is review sentiment: KaChat at 94% against Yubico Authenticator's 43%. KaChat also leads on rating (4.9 vs 3.7) and update cadence (weekly vs monthly). Yubico Authenticator's advantage is ratings volume (268 vs 39). On price, ads, in-app purchases and monetization model 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 3.7. That said, the two scores are not equally well evidenced: Yubico Authenticator has 268 ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 43% of Yubico Authenticator's written reviews are positive against 94% of KaChat's.

Yubico Authenticator ships an update monthly, KaChat weekly. Both last shipped on October 20, 2026.

## The numbers

| Metric | Yubico Authenticator | KaChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (268 ratings)](https://appshunter.io/ios/app/yubico-authenticator/id1476679808/reviews) | **[4.9 (39 ratings)](https://appshunter.io/ios/app/kachat/id6759102359/reviews)** |
| Number of ratings | **268** | 39 |
| Positive reviews | 42.5% of reviews | **94.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | Free |
| Size | 4 MB | 66 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Yubico](https://appshunter.io/developer/586890748) | [Cyber Ventures LLC](https://appshunter.io/developer/1841001762) |

## What reviewers say

### Yubico Authenticator

[App page](https://appshunter.io/ios/app/yubico-authenticator/id1476679808)

Secure your online accounts with hardware-backed two-factor authentication. Store unique credentials on a physical security key, eliminating the need to store sensitive data on your mobile device. Generate verification codes without an internet connection for enhanced account protection.

**Highlights:** Hardware-backed security key storage, Touch or NFC authentication, USB-C support, Biometric unlock (FaceID/TouchID), QR code setup, User presence verification, Smart Card support

**In-app purchases:** none

**What reviewers like**

- 🚀 Works well with Yubikey
- 🔒 Secure storage of OATH secrets
- 👍 Simple and easy to use
- 🚀 NFC support added

**What reviewers complain about**

- 🐛 NFC not working on some devices
- 🐛 Clunky UI for password-protected keys
- 🐛 Crashes and freezes reported
- 🐛 Incompatible with some devices (iPad, older iPhones)

**Reported bugs**

- NFC not working reliably
- Accounts disappearing after updates
- Calculation of codes not working
- Keyboard issues when using keys

**Requested features**

- Allow editing and rearranging of entries
- Add support for multiple keys per account
- Improve iPad/tablet support
- Add dark mode option
- Improve QR code scanning


### KaChat

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

This secure messaging app utilizes the Kasia protocol and 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, Cross-platform support

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

**In-app purchases:** none


## Frequently asked questions

### Is Yubico Authenticator free?

Yubico Authenticator 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, Yubico Authenticator or KaChat?

KaChat is rated higher. Yubico Authenticator averages 3.7 out of 5 from 268 ratings, while KaChat averages 4.9 from 39 ratings.

### Do Yubico Authenticator or KaChat have ads?

Neither Yubico Authenticator nor KaChat shows ads.

### Which is updated more often, Yubico Authenticator or KaChat?

Yubico Authenticator ships an update monthly, and KaChat weekly. Most recently, Yubico Authenticator was updated on October 20, 2026 and KaChat on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*