# Abacus Genius Perfect Practice vs Mental Math Kingdom

The clearest difference is price: Mental Math Kingdom at Free against Abacus Genius Perfect Practice's $3.99. Mental Math Kingdom also leads on update cadence (daily vs every 4 days). Abacus Genius Perfect Practice's advantage is device support (3 vs 1) and iOS requirement (13.4 vs 17.0). On ads and in-app purchases there is nothing between them.

Mental Math Kingdom is free to download; Abacus Genius Perfect Practice costs $3.99 up front. Abacus Genius Perfect Practice sells 1 in-app purchase, starting at $3.99 per month and Mental Math Kingdom sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Abacus Genius Perfect Practice ships an update every 4 days, Mental Math Kingdom daily. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Abacus Genius Perfect Practice | Mental Math Kingdom |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Daily** |
| Size | 37 MB | 13 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Diptimaya Patra](https://appshunter.io/developer/1726820679) | [Hiroki Sekimoto](https://appshunter.io/developer/1877884860) |

## What reviewers say

### Abacus Genius Perfect Practice

[App page](https://appshunter.io/ios/app/abacus-genius-perfect-practice/id6477358095)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $3.99 | per month |


### Mental Math Kingdom

[App page](https://appshunter.io/ios/app/mental-math-kingdom/id6787438808)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Math Kingdom Pro | $3.99 | one-time |


## Frequently asked questions

### Is Abacus Genius Perfect Practice free?

Abacus Genius Perfect Practice costs $3.99, and also offers in-app purchases.

### Is Mental Math Kingdom free?

Mental Math Kingdom is free to download, with in-app purchases available.

### Do Abacus Genius Perfect Practice or Mental Math Kingdom have ads?

Neither Abacus Genius Perfect Practice nor Mental Math Kingdom shows ads.

### Which is updated more often, Abacus Genius Perfect Practice or Mental Math Kingdom?

Abacus Genius Perfect Practice ships an update every 4 days, and Mental Math Kingdom daily. Most recently, Abacus Genius Perfect Practice was updated on November 12, 2026 and Mental Math Kingdom on November 10, 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.*