# Masyu vs must be one

The clearest difference is in-app purchases: must be one at none against Masyu's 1. Masyu's advantage is update cadence (fortnightly vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Masyu sells 1 one-off in-app purchase. must be one asks for nothing beyond the download.

Masyu ships an update fortnightly, must be one every 5 weeks. The most recent releases landed on October 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Masyu | must be one |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/masyu-logic-loop-puzzle/id6791872520/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 6 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [建明 顾](https://appshunter.io/developer/1637867417) | [office-canard games](https://appshunter.io/developer/6793797221) |

## What reviewers say

### Masyu

[App page](https://appshunter.io/ios/app/masyu-logic-loop-puzzle/id6791872520)

Solve the classic Japanese pearl puzzle by drawing a single, closed loop that passes through every black and white pearl. Enjoy deep logic challenges with intuitive touch controls, multiple grid sizes, and daily or random challenges for endless replayability. Track your progress with missions and aim for your best scores.

**Highlights:** Authentic Masyu/Pearl Puzzle gameplay, Multiple grid sizes (5x7 to 10x15), Daily and Random Challenges, Offline play with timer and scores, Progress tracking with missions, Intuitive touch controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 puzzles | $0.99 | one-time |


### must be one

[App page](https://appshunter.io/ios/app/must-be-one/id6794124997)

**In-app purchases:** none


## Frequently asked questions

### Is Masyu free?

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

### Is must be one free?

must be one is free to download, with no in-app purchases.

### Do Masyu or must be one have ads?

Both Masyu and must be one show ads.

### Which is updated more often, Masyu or must be one?

Masyu ships an update fortnightly, and must be one every 5 weeks. Most recently, Masyu was updated on October 25, 2026 and must be one on October 6, 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.*