# 時計式タイマー vs LectureWatch

The clearest difference is update cadence: LectureWatch at every 2 months against 時計式タイマー's every 5 months. LectureWatch also leads on iOS requirement (15.0 vs 17.6). 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.

時計式タイマー ships an update every 5 months, LectureWatch every 2 months. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 時計式タイマー | LectureWatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 1 MB | 8 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MARGINAL GAINS INC.](https://appshunter.io/developer/1790407458) | [TARO TATSUMI](https://appshunter.io/developer/1836111580) |

## What reviewers say

### 時計式タイマー

[App page](https://appshunter.io/ios/app/id6741380268)

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

**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 時計式タイマー free?

時計式タイマー is free to download, with no in-app purchases.

### Is LectureWatch free?

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

### Do 時計式タイマー or LectureWatch have ads?

Neither 時計式タイマー nor LectureWatch shows ads.

### Which is updated more often, 時計式タイマー or LectureWatch?

時計式タイマー ships an update every 5 months, and LectureWatch every 2 months. Most recently, 時計式タイマー was updated on September 9, 2026 and LectureWatch on September 19, 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.*