# Flash vs OnlyMath

The clearest difference is ads: OnlyMath at none against Flash's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Flash | OnlyMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Size | 29 MB | 46 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [yeeun seo](https://appshunter.io/developer/1634215603) | [LAURENT IRRAWADDY CHAGNON](https://appshunter.io/developer/6796214095) |

## What reviewers say

### Flash

[App page](https://appshunter.io/ios/app/flash-mental-math/id1634215601)

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

**In-app purchases:** none


### OnlyMath

[App page](https://appshunter.io/ios/app/onlymath-mental-math/id6796214093)

**In-app purchases:** none


## Frequently asked questions

### Is Flash free?

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

### Is OnlyMath free?

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

### Do Flash or OnlyMath have ads?

Flash shows ads; OnlyMath does not.

### Which is updated more often, Flash or OnlyMath?

Flash ships an update every 2 months, and OnlyMath every 2 months. Most recently, Flash was updated on October 22, 2026 and OnlyMath on October 24, 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.*