# 100ます計算 vs Random Quiz

The clearest difference is update cadence: Random Quiz at every 5 days against 100ます計算's every 4 months. 100ます計算's advantage is iOS requirement (12.0 vs 15.0). 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.

100ます計算 ships an update every 4 months, Random Quiz every 5 days. The most recent releases landed on October 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 100ます計算 | Random Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/100-100/id1623952451/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 203 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### 100ます計算

[App page](https://appshunter.io/ios/app/100-100/id1623952451)

Practice math drills with a treasure-hunting game. Features include past problem review, multiplication tables selection, speed tracking graphs, and a time attack mode. Progress is recorded on a calendar.

**Highlights:** Past problem review system, Multiplication table selection, Speed improvement graphs, Calendar for learning dates, Time attack mode

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

**In-app purchases:** none


### Random Quiz

[App page](https://appshunter.io/ios/app/random-quiz/id6744266408)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 100ます計算 free?

100ます計算 is free to download, with no in-app purchases.

### Is Random Quiz free?

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

### Do 100ます計算 or Random Quiz have ads?

Both 100ます計算 and Random Quiz show ads.

### Which is updated more often, 100ます計算 or Random Quiz?

100ます計算 ships an update every 4 months, and Random Quiz every 5 days. Most recently, 100ます計算 was updated on October 27, 2026 and Random Quiz on October 6, 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.*