# かけ算ラボ vs Study Clock Timer

The clearest difference is in-app purchases: かけ算ラボ at none against Study Clock Timer's 1. かけ算ラボ also leads on update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Study Clock Timer sells 1 one-off in-app purchase. かけ算ラボ asks for nothing beyond the download.

かけ算ラボ ships an update daily, Study Clock Timer every 3 days. The most recent releases landed on June 2, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | かけ算ラボ | Study Clock Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Size | 15 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tsuneyuki Miura](https://appshunter.io/developer/1883466999) | [Tatsuya Kawasaki](https://appshunter.io/developer/562479077) |

## What reviewers say

### かけ算ラボ

[App page](https://appshunter.io/ios/app/id6770941891)

**Features:** macOS Compatibility

**In-app purchases:** none


### Study Clock Timer

[App page](https://appshunter.io/ios/app/study-clock-timer/id6780480380)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a drink | $2.99 | one-time |


## Frequently asked questions

### Is かけ算ラボ free?

かけ算ラボ is free to download, with no in-app purchases.

### Is Study Clock Timer free?

Study Clock Timer is free to download, with in-app purchases available.

### Do かけ算ラボ or Study Clock Timer have ads?

Neither かけ算ラボ nor Study Clock Timer shows ads.

### Which is updated more often, かけ算ラボ or Study Clock Timer?

かけ算ラボ ships an update daily, and Study Clock Timer every 3 days. Most recently, かけ算ラボ was updated on June 2, 2026 and Study Clock Timer on September 18, 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.*