# 100ます計算ノート vs アチーブ

The clearest difference is ads: アチーブ at none against 100ます計算ノート's shown. アチーブ also leads on iOS requirement (14.0 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 100ます計算ノート sells 1 one-off in-app purchase and アチーブ sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

100ます計算ノート ships an update every 6 days, アチーブ weekly. The most recent releases landed on September 9, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 100ます計算ノート | アチーブ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Weekly |
| Size | 37 MB | 48 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Taniguchi](https://appshunter.io/developer/1879248125) | [Katsuhiro Inamura](https://appshunter.io/developer/6786097976) |

## What reviewers say

### 100ます計算ノート

[App page](https://appshunter.io/ios/app/100/id6761297945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除する | $2.99 | one-time |


### アチーブ

[App page](https://appshunter.io/ios/app/id6787655441)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| アチーブ プレミアム（月額） | $2.99 | per month |
| アチーブ プレミアム（年額） | $22.99 | per year |


## Frequently asked questions

### Is 100ます計算ノート free?

100ます計算ノート is free to download, with in-app purchases available.

### Is アチーブ free?

アチーブ is free to download, with in-app purchases available.

### Do 100ます計算ノート or アチーブ have ads?

100ます計算ノート shows ads; アチーブ does not.

### Which is updated more often, 100ます計算ノート or アチーブ?

100ます計算ノート ships an update every 6 days, and アチーブ weekly. Most recently, 100ます計算ノート was updated on September 9, 2026 and アチーブ on September 16, 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.*