# UMA Abacus vs Brainy Abacus

The clearest difference is update cadence: UMA Abacus at every 3 weeks against Brainy Abacus's every 2 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, Brainy Abacus every 2 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | UMA Abacus | Brainy Abacus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 73 MB | 485 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [shuihua zhu](https://appshunter.io/developer/1444836907) | [Dweek Studios](https://appshunter.io/developer/1122405852) |

## What reviewers say

### UMA Abacus

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Brainy Abacus

[App page](https://appshunter.io/ios/app/brainy-abacus/id1528731168)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UMA Abacus free?

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

### Is Brainy Abacus free?

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

### Do UMA Abacus or Brainy Abacus have ads?

Neither UMA Abacus nor Brainy Abacus shows ads.

### Which is updated more often, UMA Abacus or Brainy Abacus?

UMA Abacus ships an update every 3 weeks, and Brainy Abacus every 2 months. Most recently, UMA Abacus was updated on November 11, 2026 and Brainy Abacus on November 7, 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.*