# Flash Anzan vs Missing Digits

The clearest difference is ads: Missing Digits at none against Flash Anzan's shown. Missing Digits also leads on update cadence (monthly vs every 3 months). Flash Anzan's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Flash Anzan sells 1 one-off in-app purchase and Missing Digits sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flash Anzan ships an update every 3 months, Missing Digits monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flash Anzan | Missing Digits |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Size | 50 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tomople](https://appshunter.io/developer/1384257281) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### Flash Anzan

[App page](https://appshunter.io/ios/app/flash-anzan-soroban-math/id6477599363)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Missing Digits

[App page](https://appshunter.io/ios/app/missing-digits-math-puzzle/id6799607537)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is Flash Anzan free?

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

### Is Missing Digits free?

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

### Do Flash Anzan or Missing Digits have ads?

Flash Anzan shows ads; Missing Digits does not.

### Which is updated more often, Flash Anzan or Missing Digits?

Flash Anzan ships an update every 3 months, and Missing Digits monthly. Most recently, Flash Anzan was updated on October 24, 2026 and Missing Digits on October 25, 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.*