# Math Shot Subtraction vs Anzan19x19

The clearest difference is price: Anzan19x19 at Free against Math Shot Subtraction's $2.99. Anzan19x19 also leads on update cadence (every 3 days vs every 19 months). Math Shot Subtraction's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Anzan19x19 is free to download; Math Shot Subtraction costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math Shot Subtraction ships an update every 19 months, Anzan19x19 every 3 days. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Math Shot Subtraction | Anzan19x19 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 3 days** |
| Size | 18 MB | 38 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Hajime Hotaka](https://appshunter.io/developer/1495063369) |

## What reviewers say

### Math Shot Subtraction

[App page](https://appshunter.io/ios/app/math-shot-subtraction/id1193013550)

**Features:** macOS Compatibility

**In-app purchases:** none


### Anzan19x19

[App page](https://appshunter.io/ios/app/anzan19x19/id1495063370)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Shot Subtraction free?

Math Shot Subtraction costs $2.99, with no in-app purchases.

### Is Anzan19x19 free?

Anzan19x19 is free to download, with no in-app purchases.

### Do Math Shot Subtraction or Anzan19x19 have ads?

Anzan19x19 shows ads; Math Shot Subtraction does not.

### Which is updated more often, Math Shot Subtraction or Anzan19x19?

Math Shot Subtraction ships an update every 19 months, and Anzan19x19 every 3 days. Most recently, Math Shot Subtraction was updated on November 2, 2026 and Anzan19x19 on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*