# さんすうアプリTRUEKAME vs ちょこ暗 算数

The clearest difference is in-app purchases: さんすうアプリTRUEKAME at none against ちょこ暗 算数's 2. さんすうアプリTRUEKAME also leads on iOS requirement (11.0 vs 17.0). ちょこ暗 算数's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 8 months). On price and device support there is nothing between them.

Both are free to download. ちょこ暗 算数 sells 2 in-app purchases, starting at $0.99 per month. さんすうアプリTRUEKAME asks for nothing beyond the download.

さんすうアプリTRUEKAME ships an update every 8 months, ちょこ暗 算数 every 5 weeks. The most recent releases landed on September 20, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | さんすうアプリTRUEKAME | ちょこ暗 算数 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Size | 62 MB | 15 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [Always Sunny Ltd.](https://appshunter.io/developer/572443468) |

## What reviewers say

### さんすうアプリTRUEKAME

[App page](https://appshunter.io/ios/app/truekame/id1589892183)

**Features:** macOS Compatibility

**In-app purchases:** none


### ちょこ暗 算数

[App page](https://appshunter.io/ios/app/id6469766855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $0.99 | per month |
| 年額プラン | $4.99 | per year |


## Frequently asked questions

### Is さんすうアプリTRUEKAME free?

さんすうアプリTRUEKAME is free to download, with no in-app purchases.

### Is ちょこ暗 算数 free?

ちょこ暗 算数 is free to download, with in-app purchases available.

### Do さんすうアプリTRUEKAME or ちょこ暗 算数 have ads?

さんすうアプリTRUEKAME shows ads; ちょこ暗 算数 does not.

### Which is updated more often, さんすうアプリTRUEKAME or ちょこ暗 算数?

さんすうアプリTRUEKAME ships an update every 8 months, and ちょこ暗 算数 every 5 weeks. Most recently, さんすうアプリTRUEKAME was updated on September 20, 2026 and ちょこ暗 算数 on August 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.*