# Flash Mental Calc vs Speed Math Drill

The clearest difference is in-app purchases: Flash Mental Calc at none against Speed Math Drill's 1. Flash Mental Calc also leads on ads (none vs shown). Speed Math Drill's advantage is iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Speed Math Drill sells 1 one-off in-app purchase. Flash Mental Calc asks for nothing beyond the download.

## The numbers

| Metric | Flash Mental Calc | Speed Math Drill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Size | 5 MB | 37 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wenbo Chen](https://appshunter.io/developer/1884329176) | [MASAKI CHIBA](https://appshunter.io/developer/1890488277) |

## What reviewers say

### Flash Mental Calc

[App page](https://appshunter.io/ios/app/flash-mental-calc/id6760411165)

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

**In-app purchases:** none


### Speed Math Drill

[App page](https://appshunter.io/ios/app/speed-math-drill-mental-math/id6761619388)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


## Frequently asked questions

### Is Flash Mental Calc free?

Flash Mental Calc is free to download, with no in-app purchases.

### Is Speed Math Drill free?

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

### Do Flash Mental Calc or Speed Math Drill have ads?

Speed Math Drill shows ads; Flash Mental Calc does not.

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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.*