# @CalcMaster vs Mental Math Game

The clearest difference is price: @CalcMaster at Free against Mental Math Game's $2.99. @CalcMaster also leads on in-app purchases (none vs 1) and iOS requirement (16.6 vs 18.1). On update cadence, ads and device support there is nothing between them.

@CalcMaster is free to download; Mental Math Game costs $2.99 up front. Mental Math Game sells 1 one-off in-app purchase. @CalcMaster asks for nothing beyond the download.

@CalcMaster ships an update every 10 days, Mental Math Game every 9 days. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | @CalcMaster | Mental Math Game |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 9 days** |
| Size | 58 MB | 43 MB |
| Requires iOS | **16.6** | 18.1 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [David Kelen](https://appshunter.io/developer/1796712157) | [Gil Hakemi](https://appshunter.io/developer/1536957400) |

## What reviewers say

### @CalcMaster

[App page](https://appshunter.io/ios/app/calcmaster/id6743536646)

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

**In-app purchases:** none


### Mental Math Game

[App page](https://appshunter.io/ios/app/mental-math-game-rounders/id6744535163)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rounders Premium Edition | $3.99 | one-time |


## Frequently asked questions

### Is @CalcMaster free?

@CalcMaster is free to download, with no in-app purchases.

### Is Mental Math Game free?

Mental Math Game costs $2.99, and also offers in-app purchases.

### Do @CalcMaster or Mental Math Game have ads?

Neither @CalcMaster nor Mental Math Game shows ads.

### Which is updated more often, @CalcMaster or Mental Math Game?

@CalcMaster ships an update every 10 days, and Mental Math Game every 9 days. Most recently, @CalcMaster was updated on September 19, 2026 and Mental Math Game on September 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.*