# 算数100ます vs 百Math

The clearest difference is in-app purchases: 百Math at none against 算数100ます's 1. 百Math also leads on update cadence (every 9 days vs every 6 weeks). 算数100ます's advantage is ads (none vs shown) and iOS requirement (9.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. 算数100ます sells 1 one-off in-app purchase. 百Math asks for nothing beyond the download.

算数100ます ships an update every 6 weeks, 百Math every 9 days. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 算数100ます | 百Math |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | — | Ad-supported |
| Size | 46 MB | 18 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [がくげい](https://appshunter.io/developer/415230275) | [naoya saito](https://appshunter.io/developer/1576521641) |

## What reviewers say

### 算数100ます

[App page](https://appshunter.io/ios/app/100/id1281430681)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| アップグレード | $3.99 | one-time |


### 百Math

[App page](https://appshunter.io/ios/app/math-calculation-app/id1576521639)

This app helps users improve their mental arithmetic skills through a 100-problem calculation trainer. It offers various modes, progress tracking, and a global leaderboard to encourage practice and competition. A clean design and home screen widget provide convenient access.

**Highlights:** 100-problem calculation trainer, Addition, Subtraction, Multiplication, Division modes, Progress tracking (streak, average time, charts), Global ranking system, Distraction-free design, Home screen widget

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

**In-app purchases:** none


## Frequently asked questions

### Is 算数100ます free?

算数100ます is free to download, with in-app purchases available.

### Is 百Math free?

百Math is free to download, with no in-app purchases.

### Do 算数100ます or 百Math have ads?

百Math shows ads; 算数100ます does not.

### Which is updated more often, 算数100ます or 百Math?

算数100ます ships an update every 6 weeks, and 百Math every 9 days. Most recently, 算数100ます was updated on October 8, 2026 and 百Math on October 2, 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.*