# Math Masters vs Even or odd Mental calculation

The clearest difference is update cadence: Math Masters at every 6 weeks against Even or odd Mental calculation's every 23 months. Math Masters also leads on iOS requirement (11.0 vs 15.0). Even or odd Mental calculation's advantage is review sentiment (100% vs 82%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Math Masters sells 1 one-off in-app purchase and Even or odd Mental calculation sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Math Masters ships an update every 6 weeks, Even or odd Mental calculation every 23 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Math Masters | Even or odd Mental calculation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (12 ratings)](https://appshunter.io/ios/app/math-masters-arithmetic/id514919162/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 81.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 23 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 115 MB | 68 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HARASHOW Interactive](https://appshunter.io/developer/356148278) | [Iker Vazquez](https://appshunter.io/developer/1032978250) |

## What reviewers say

### Math Masters

[App page](https://appshunter.io/ios/app/math-masters-arithmetic/id514919162)

Engage in math challenges with a ninja guide. Choose from three modes: solve equations to defeat enemies, construct formulas from given answers, or practice specific arithmetic skills.

**Highlights:** Solve equations to defeat enemies, Construct formulas from answers, Practice weak arithmetic points, Three distinct game modes, Ninja-themed learning

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Disable Ads | $3.99 | one-time |


### Even or odd Mental calculation

[App page](https://appshunter.io/ios/app/even-or-odd-mental-calculation/id1032978251)

Test your mental math skills by quickly determining if the result of an on-screen operation is even or odd. Earn more points for faster answers and challenge friends to see who has the quickest mind. The difficulty increases as you progress.

**Highlights:** Timed mental calculation challenges, Score tracking for personal bests, Speed-based scoring system, Increasing difficulty levels, Multiplayer comparison

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Math Masters free?

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

### Is Even or odd Mental calculation free?

Even or odd Mental calculation is free to download, with in-app purchases available.

### Do Math Masters or Even or odd Mental calculation have ads?

Both Math Masters and Even or odd Mental calculation show ads.

### Which is updated more often, Math Masters or Even or odd Mental calculation?

Math Masters ships an update every 6 weeks, and Even or odd Mental calculation every 23 months. Most recently, Math Masters was updated on November 1, 2026 and Even or odd Mental calculation on November 1, 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.*