# UMA Maths vs Abacus AI

The clearest difference is in-app purchases: UMA Maths at none against Abacus AI's 5. UMA Maths also leads on update cadence (daily vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Abacus AI sells 5 one-off in-app purchases. UMA Maths asks for nothing beyond the download.

UMA Maths ships an update daily, Abacus AI every 6 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | UMA Maths | Abacus AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 weeks |
| Size | 106 MB | 884 MB |
| Requires iOS | 15 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shuihua zhu](https://appshunter.io/developer/1444836907) | [Guangzhou Fabaceous Seedling Iinformation Technology Co., Ltd.](https://appshunter.io/developer/1231700775) |

## What reviewers say

### UMA Maths

[App page](https://appshunter.io/ios/app/uma-maths/id6447057157)

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

**In-app purchases:** none


### Abacus AI

[App page](https://appshunter.io/ios/app/abacus-ai-student-version/id6677015880)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 珠心算Ai学生端会员(3月) | $49.99 | one-time |
| 珠心算Ai学生端会员（半年） | $99.99 | one-time |
| 珠心算Ai学生端会员（1年） | $129.99 | one-time |
| 珠心算Ai学生端会员（3年） | $149.99 | one-time |
| 珠心算Ai学生端会员（2年） | $199.99 | one-time |


## Frequently asked questions

### Is UMA Maths free?

UMA Maths is free to download, with no in-app purchases.

### Is Abacus AI free?

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

### Do UMA Maths or Abacus AI have ads?

Neither UMA Maths nor Abacus AI shows ads.

### Which is updated more often, UMA Maths or Abacus AI?

UMA Maths ships an update daily, and Abacus AI every 6 weeks. Most recently, UMA Maths was updated on October 15, 2026 and Abacus AI on October 18, 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.*