# Kani Math vs FlashAnzan

The clearest difference is device support: FlashAnzan at 4 against Kani Math's 2. Kani Math's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Kani Math sells 2 in-app purchases, starting at $5.99 per month and FlashAnzan sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kani Math ships an update every 4 days, FlashAnzan every 3 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Kani Math | FlashAnzan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 16 MB | 8 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [TaheelWeb](https://appshunter.io/developer/1820898256) | [Haruhiko Kishi](https://appshunter.io/developer/942468714) |

## What reviewers say

### Kani Math

[App page](https://appshunter.io/ios/app/kani-math-abacus-mental-math/id6770558250)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kani Math Premium — Monthly | $5.99 | per month |
| Kani Math Premium — Yearly | $49.99 | per year |


### FlashAnzan

[App page](https://appshunter.io/ios/app/flashanzan-mental-math/id6799545041)

**Features:** Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Grades | $3.99 | one-time |


## Frequently asked questions

### Is Kani Math free?

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

### Is FlashAnzan free?

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

### Do Kani Math or FlashAnzan have ads?

Neither Kani Math nor FlashAnzan shows ads.

### Which is updated more often, Kani Math or FlashAnzan?

Kani Math ships an update every 4 days, and FlashAnzan every 3 days. Most recently, Kani Math was updated on October 24, 2026 and FlashAnzan on October 27, 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.*