# KU Leuven Authenticator vs Book'u Timer

The clearest difference is update cadence: KU Leuven Authenticator at every 3 weeks against Book'u Timer's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KU Leuven Authenticator ships an update every 3 weeks, Book'u Timer every 2 months. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | KU Leuven Authenticator | Book'u Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (8 ratings)](https://appshunter.io/ios/app/ku-leuven-authenticator/id1313409950/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 3.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 29 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Katholieke Universiteit te Leuven](https://appshunter.io/developer/925286039) | [Smalltalk bvba](https://appshunter.io/developer/1367949944) |

## What reviewers say

### KU Leuven Authenticator

[App page](https://appshunter.io/ios/app/ku-leuven-authenticator/id1313409950)

Provides integrated two-factor authentication for accessing central KU Leuven services. Enhances security by requiring an additional verification step beyond a password.

**Highlights:** Two-factor authentication, Central KU Leuven login security, Integrated security solution

**In-app purchases:** none


### Book'u Timer

[App page](https://appshunter.io/ios/app/booku-timer/id1457036284)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KU Leuven Authenticator free?

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

### Is Book'u Timer free?

Book'u Timer is free to download, with no in-app purchases.

### Do KU Leuven Authenticator or Book'u Timer have ads?

Neither KU Leuven Authenticator nor Book'u Timer shows ads.

### Which is updated more often, KU Leuven Authenticator or Book'u Timer?

KU Leuven Authenticator ships an update every 3 weeks, and Book'u Timer every 2 months. Most recently, KU Leuven Authenticator was updated on September 9, 2026 and Book'u Timer on September 17, 2026.

---

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