# Blocky Craft vs Rapid mental arithmetic

The clearest difference is in-app purchases: Rapid mental arithmetic at none against Blocky Craft's 8. Rapid mental arithmetic also leads on update cadence (every 3 weeks vs every 12 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Blocky Craft sells 8 one-off in-app purchases. Rapid mental arithmetic asks for nothing beyond the download.

Blocky Craft ships an update every 12 months, Rapid mental arithmetic every 3 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Blocky Craft | Rapid mental arithmetic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Size | 82 MB | 41 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京快博科斯信息技术有限公司](https://appshunter.io/developer/1530774041) | [Gita Guha](https://appshunter.io/developer/1869265430) |

## What reviewers say

### Blocky Craft

[App page](https://appshunter.io/ios/app/blocky-craft/id1530774039)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free Continue | $0.99 | one-time |
| 100 Blots | $0.99 | one-time |
| 1000 Coins | $0.99 | one-time |
| 480 Blots | $2.99 | one-time |
| 900 Blots | $4.99 | one-time |
| 4800 Coins | $4.99 | one-time |
| 2000 Blots | $7.99 | one-time |
| 12000 Coins | $7.99 | one-time |


### Rapid mental arithmetic

[App page](https://appshunter.io/ios/app/rapid-mental-arithmetic/id6757849531)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blocky Craft free?

Blocky Craft is free to download, with in-app purchases available.

### Is Rapid mental arithmetic free?

Rapid mental arithmetic is free to download, with no in-app purchases.

### Do Blocky Craft or Rapid mental arithmetic have ads?

Both Blocky Craft and Rapid mental arithmetic show ads.

### Which is updated more often, Blocky Craft or Rapid mental arithmetic?

Blocky Craft ships an update every 12 months, and Rapid mental arithmetic every 3 weeks. Most recently, Blocky Craft was updated on October 13, 2026 and Rapid mental arithmetic on October 3, 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.*