# UMA Abacus vs 珠心算Ai管理端

The clearest difference is update cadence: UMA Abacus at every 3 weeks against 珠心算Ai管理端's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UMA Abacus ships an update every 3 weeks, 珠心算Ai管理端 every 4 months. The most recent releases landed on September 17, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | UMA Abacus | 珠心算Ai管理端 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 73 MB | 156 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [shuihua zhu](https://appshunter.io/developer/1444836907) | [广州豆苗信息科技有限公司](https://appshunter.io/developer/1231700775) |

## What reviewers say

### UMA Abacus

[App page](https://appshunter.io/ios/app/uma-abacus/id1460627418)

**Features:** macOS Compatibility

**In-app purchases:** none


### 珠心算Ai管理端

[App page](https://appshunter.io/ios/app/ai/id6748715366)

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

**In-app purchases:** none


## Frequently asked questions

### Is UMA Abacus free?

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

### Is 珠心算Ai管理端 free?

珠心算Ai管理端 is free to download, with no in-app purchases.

### Do UMA Abacus or 珠心算Ai管理端 have ads?

Neither UMA Abacus nor 珠心算Ai管理端 shows ads.

### Which is updated more often, UMA Abacus or 珠心算Ai管理端?

UMA Abacus ships an update every 3 weeks, and 珠心算Ai管理端 every 4 months. Most recently, UMA Abacus was updated on September 17, 2026 and 珠心算Ai管理端 on September 5, 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.*