# Flash Anzan Brain Training vs FastMath

The clearest difference is in-app purchases: Flash Anzan Brain Training at none against FastMath's 1. FastMath's advantage is update cadence (every 2 weeks vs every 22 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FastMath sells 1 one-off in-app purchase. Flash Anzan Brain Training asks for nothing beyond the download.

Flash Anzan Brain Training ships an update every 22 months, FastMath every 2 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Flash Anzan Brain Training | FastMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 22 months | **Every 2 weeks** |
| Size | 75 MB | 53 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TSUBASA MIZUNO](https://appshunter.io/developer/888522562) | [HAFSA BERIL SAGLAM](https://appshunter.io/developer/1894708105) |

## What reviewers say

### Flash Anzan Brain Training

[App page](https://appshunter.io/ios/app/flash-anzan-brain-training/id6476837041)

**Features:** macOS Compatibility

**In-app purchases:** none


### FastMath

[App page](https://appshunter.io/ios/app/fastmath-mental-math-trainer/id6762569777)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $6.99 | one-time |


## Frequently asked questions

### Is Flash Anzan Brain Training free?

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

### Is FastMath free?

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

### Do Flash Anzan Brain Training or FastMath have ads?

Both Flash Anzan Brain Training and FastMath show ads.

### Which is updated more often, Flash Anzan Brain Training or FastMath?

Flash Anzan Brain Training ships an update every 22 months, and FastMath every 2 weeks. Most recently, Flash Anzan Brain Training was updated on October 2, 2026 and FastMath on October 7, 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.*