# Mondrian Sudoku vs LOOP

The clearest difference is in-app purchases: Mondrian Sudoku at none against LOOP's 1. Mondrian Sudoku also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. LOOP sells 1 one-off in-app purchase. Mondrian Sudoku asks for nothing beyond the download.

Mondrian Sudoku ships an update every 3 weeks, LOOP every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Mondrian Sudoku | LOOP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 106 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [康 杨](https://appshunter.io/developer/843812777) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Mondrian Sudoku

[App page](https://appshunter.io/ios/app/mondrian-sudoku/id6467719812)

**Features:** macOS Compatibility

**In-app purchases:** none


### LOOP

[App page](https://appshunter.io/ios/app/loop-slitherlink-puzzle/id6786162760)

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Mondrian Sudoku free?

Mondrian Sudoku is free to download, with no in-app purchases.

### Is LOOP free?

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

### Do Mondrian Sudoku or LOOP have ads?

Neither Mondrian Sudoku nor LOOP shows ads.

### Which is updated more often, Mondrian Sudoku or LOOP?

Mondrian Sudoku ships an update every 3 weeks, and LOOP every 2 weeks. Most recently, Mondrian Sudoku was updated on October 30, 2026 and LOOP on October 28, 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.*