# Dieter Clock vs LectureWatch

The clearest difference is update cadence: Dieter Clock at every 3 weeks against LectureWatch's every 2 months. LectureWatch's advantage is iOS requirement (15.0 vs 17.0). 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.

Dieter Clock ships an update every 3 weeks, LectureWatch every 2 months. Both last shipped on November 9, 2026.

## The numbers

| Metric | Dieter Clock | LectureWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 5 MB | 8 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oguzhan Bilgin](https://appshunter.io/developer/1848626364) | [TARO TATSUMI](https://appshunter.io/developer/1836111580) |

## What reviewers say

### Dieter Clock

[App page](https://appshunter.io/ios/app/dieter-clock/id6754521171)

**In-app purchases:** none


### LectureWatch

[App page](https://appshunter.io/ios/app/lecturewatch/id6754700306)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dieter Clock free?

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

### Is LectureWatch free?

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

### Do Dieter Clock or LectureWatch have ads?

Neither Dieter Clock nor LectureWatch shows ads.

### Which is updated more often, Dieter Clock or LectureWatch?

Dieter Clock ships an update every 3 weeks, and LectureWatch every 2 months. Most recently, Dieter Clock was updated on November 9, 2026 and LectureWatch on November 9, 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.*