# Cuspart vs Grids Thermometers

The clearest difference is update cadence: Grids Thermometers at every 4 weeks against Cuspart's every 5 months. Grids Thermometers also leads on iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cuspart sells 8 in-app purchases, starting at $2.99 per month and Grids Thermometers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cuspart ships an update every 5 months, Grids Thermometers every 4 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Cuspart | Grids Thermometers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Size | 21 MB | 72 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Mustafa Tolga DALBUDAK](https://appshunter.io/developer/1479052908) | [Huy Huynh](https://appshunter.io/developer/1815003126) |

## What reviewers say

### Cuspart

[App page](https://appshunter.io/ios/app/cuspart-sudoku/id6612032875)

**Features:** iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $2.99 | per month |
| 3 Month Subscription | $8.99 | per 3 months |
| 12 Month Subscription | $29.99 | per year |
| 100 Coins | $2.99 | one-time |
| Premium+ | $4.99 | one-time |
| 500 Coins | $9.99 | one-time |
| 1000 Coins | $19.99 | one-time |
| 2500 Coins | $39.99 | one-time |


### 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 |


## Frequently asked questions

### Is Cuspart free?

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

### Is Grids Thermometers free?

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

### Do Cuspart or Grids Thermometers have ads?

Both Cuspart and Grids Thermometers show ads.

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

Cuspart ships an update every 5 months, and Grids Thermometers every 4 weeks. Most recently, Cuspart was updated on October 27, 2026 and Grids Thermometers 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.*