# Grids Thermometers vs Masyu

Grids Thermometers and Masyu are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Grids Thermometers sells 1 one-off in-app purchase and Masyu sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Grids Thermometers ships an update monthly, Masyu fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Grids Thermometers | Masyu |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 67 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Huy Huynh](https://appshunter.io/developer/1815003126) | [建明 顾](https://appshunter.io/developer/1637867417) |

## What reviewers say

### Grids Thermometers

[App page](https://appshunter.io/ios/app/grids-thermometers/id6758331481)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### 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 |


## Frequently asked questions

### Is Grids Thermometers free?

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

### Is Masyu free?

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

### Do Grids Thermometers or Masyu have ads?

Both Grids Thermometers and Masyu show ads.

### Which is updated more often, Grids Thermometers or Masyu?

Grids Thermometers ships an update monthly, and Masyu fortnightly. Most recently, Grids Thermometers was updated on November 5, 2026 and Masyu 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.*