# ちょこ暗 算数 vs GCD LCM Calculation

The clearest difference is in-app purchases: GCD LCM Calculation at none against ちょこ暗 算数's 2. GCD LCM Calculation also leads on iOS requirement (15.0 vs 17.0). ちょこ暗 算数's advantage is ads (none vs shown). On price, update cadence 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. GCD LCM Calculation asks for nothing beyond the download.

ちょこ暗 算数 ships an update every 5 weeks, GCD LCM Calculation every 2 months. The most recent releases landed on August 16, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ちょこ暗 算数 | GCD LCM Calculation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 15 MB | 14 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Always Sunny Ltd.](https://appshunter.io/developer/572443468) | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) |

## What reviewers say

### 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 |


### GCD LCM Calculation

[App page](https://appshunter.io/ios/app/gcd-lcm-calculation/id6621190448)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ちょこ暗 算数 free?

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

### Is GCD LCM Calculation free?

GCD LCM Calculation is free to download, with no in-app purchases.

### Do ちょこ暗 算数 or GCD LCM Calculation have ads?

GCD LCM Calculation shows ads; ちょこ暗 算数 does not.

### Which is updated more often, ちょこ暗 算数 or GCD LCM Calculation?

ちょこ暗 算数 ships an update every 5 weeks, and GCD LCM Calculation every 2 months. Most recently, ちょこ暗 算数 was updated on August 16, 2026 and GCD LCM Calculation on September 23, 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.*