# Michi Moves vs SUM

The clearest difference is in-app purchases: Michi Moves at none against SUM's 1. SUM's advantage is ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SUM sells 1 one-off in-app purchase. Michi Moves asks for nothing beyond the download.

Michi Moves ships an update every 3 weeks, SUM every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Michi Moves | SUM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 42 MB | 110 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | +4 |
| Developer | [MULTIAPS S.L.](https://appshunter.io/developer/1416723699) | [Alex van Rooijen](https://appshunter.io/developer/1874390384) |

## What reviewers say

### Michi Moves

[App page](https://appshunter.io/ios/app/michi-moves-cat-puzzles/id6793075642)

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

**In-app purchases:** none


### SUM

[App page](https://appshunter.io/ios/app/sum-quiet-math-puzzles/id6804407416)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SUM Premium | $3.99 | one-time |


## Frequently asked questions

### Is Michi Moves free?

Michi Moves is free to download, with no in-app purchases.

### Is SUM free?

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

### Do Michi Moves or SUM have ads?

Michi Moves shows ads; SUM does not.

### Which is updated more often, Michi Moves or SUM?

Michi Moves ships an update every 3 weeks, and SUM every 3 days. Most recently, Michi Moves was updated on October 31, 2026 and SUM on October 31, 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.*