# UMA Abacus vs UCMAS CY GR

The clearest difference is update cadence: UMA Abacus at every 3 weeks against UCMAS CY GR's every 5 weeks. 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, UCMAS CY GR every 5 weeks. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | UMA Abacus | UCMAS CY GR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (7 ratings)](https://appshunter.io/ios/app/ucmas-cy-gr/id1491179435/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Free |
| Size | 73 MB | 3 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shuihua zhu](https://appshunter.io/developer/1444836907) | [Stavros Charalambous](https://appshunter.io/developer/1495890909) |

## What reviewers say

### UMA Abacus

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

**Features:** macOS Compatibility

**In-app purchases:** none


### UCMAS CY GR

[App page](https://appshunter.io/ios/app/ucmas-cy-gr/id1491179435)

This educational tool allows users to customize flashcard sessions for learning. Set the number of cards, digits per card, and adjust the flash speed for personalized practice. Ideal for improving mental math and memory skills.

**Highlights:** Customizable flashcard quantity, Adjustable number of digits, Configurable flash speed, Mental math practice, Memory skill enhancement

**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 UCMAS CY GR free?

UCMAS CY GR is free to download, with no in-app purchases.

### Do UMA Abacus or UCMAS CY GR have ads?

Neither UMA Abacus nor UCMAS CY GR shows ads.

### Which is updated more often, UMA Abacus or UCMAS CY GR?

UMA Abacus ships an update every 3 weeks, and UCMAS CY GR every 5 weeks. Most recently, UMA Abacus was updated on October 26, 2026 and UCMAS CY GR on November 3, 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.*