# 4 Brushes vs Math10.AI

The clearest difference is in-app purchases: 4 Brushes at none against Math10.AI's 4. Math10.AI's advantage is update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Math10.AI sells 4 one-off in-app purchases. 4 Brushes asks for nothing beyond the download.

4 Brushes ships an update every 5 months, Math10.AI monthly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 4 Brushes | Math10.AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Size | 159 MB | 81 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NIKOL NIKOLOVA](https://appshunter.io/developer/1723683579) | [Le Hong Hai](https://appshunter.io/developer/1024068951) |

## What reviewers say

### 4 Brushes

[App page](https://appshunter.io/ios/app/4-brushes/id6475224947)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math10.AI

[App page](https://appshunter.io/ios/app/math10ai/id6742319312)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 clicks | $0.49 | one-time |
| 25 clicks | $1.00 | one-time |
| 55 clicks | $2.00 | one-time |
| 80 clicks | $3.00 | one-time |


## Frequently asked questions

### Is 4 Brushes free?

4 Brushes is free to download, with no in-app purchases.

### Is Math10.AI free?

Math10.AI is free to download, with in-app purchases available.

### Do 4 Brushes or Math10.AI have ads?

Neither 4 Brushes nor Math10.AI shows ads.

### Which is updated more often, 4 Brushes or Math10.AI?

4 Brushes ships an update every 5 months, and Math10.AI monthly. Most recently, 4 Brushes was updated on November 12, 2026 and Math10.AI on November 8, 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.*