# TOTP Authenticator vs KAU Authenticator

The clearest difference is rating: TOTP Authenticator at 4.7 against KAU Authenticator's 2.3. TOTP Authenticator also leads on ratings volume (3.9K vs 3). KAU Authenticator's advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. TOTP Authenticator sells 2 one-off in-app purchases. KAU Authenticator asks for nothing beyond the download.

TOTP Authenticator holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: TOTP Authenticator has 3.9K ratings behind it against 3, so its average is the more settled of the two.

TOTP Authenticator ships an update every 2 months, KAU Authenticator monthly. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | TOTP Authenticator | KAU Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.9K ratings)](https://appshunter.io/ios/app/totp-authenticator-fast-2fa/id1404230533/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/kau-authenticator/id1644669727/reviews) |
| Number of ratings | **3.9K** | 3 |
| Positive reviews | 36.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [AppyFactor](https://appshunter.io/developer/1404230532) | [kau.edu](https://appshunter.io/developer/599032456) |

## What reviewers say

### TOTP Authenticator

[App page](https://appshunter.io/ios/app/totp-authenticator-fast-2fa/id1404230533)

Enhance your online security with this app that generates one-time tokens for two-factor authentication. Protect your accounts from hackers by easily adding 2FA to your online services. Supports cloud sync and a Chrome extension for seamless desktop integration.

**Highlights:** Cloud Sync for backup, Chrome Extension for desktop, Dark and light theme support, Multi-platform and multi-device sync, Unlimited account support, Home screen widgets, Biometric app lock

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TOTP Premium Features | $5.99 | one-time |
| TOTP Default Product | $5.99 | one-time |

**What reviewers like**

- 👍 Solid free basic experience
- 🚀 Simple and effective
- 👍 Easy to use and set up new accounts
- 🚀 Chrome extension is cool
- 🔒 Excellent app for 2FA

**What reviewers complain about**

- 🐛 No export functionality
- 🐛 Impossible to recover account without paying
- 🐛 Can't save Authy keys from sites
- 🐛 Codes expire too fast
- 🐛 Doesn't work with some services

**Reported bugs**

- Codes not working, invalid or expired
- Sync issues, lost codes
- Doesn't work with some services
- Login screen freezes
- Incompatible with older devices

**Requested features**

- Increase font size of codes
- Add folder/tree organization for keys
- Implement Face ID support
- Add dark mode theme
- Allow pushing multiple codes to Chrome extension at once


### KAU Authenticator

[App page](https://appshunter.io/ios/app/kau-authenticator/id1644669727)

This app provides secure two-factor authentication for university systems. It generates time-based one-time passwords and supports offline code generation. The app prioritizes user privacy by storing all keys locally on the device.

**Highlights:** Time-based one-time password (TOTP) generation, Secure QR code scanning for account setup, Offline code generation, Auto-refreshing codes every 30 seconds, Lightweight, fast, and secure design, Local storage of authentication keys

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TOTP Authenticator free?

TOTP Authenticator is free to download, with in-app purchases available.

### Is KAU Authenticator free?

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

### Which has better reviews, TOTP Authenticator or KAU Authenticator?

TOTP Authenticator is rated higher. TOTP Authenticator averages 4.7 out of 5 from 3.9K ratings, while KAU Authenticator averages 2.3 from 3 ratings.

### Do TOTP Authenticator or KAU Authenticator have ads?

Neither TOTP Authenticator nor KAU Authenticator shows ads.

### Which is updated more often, TOTP Authenticator or KAU Authenticator?

TOTP Authenticator ships an update every 2 months, and KAU Authenticator monthly. Most recently, TOTP Authenticator was updated on October 8, 2026 and KAU Authenticator on October 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.*