# Math Farm vs Subtractor

The clearest difference is in-app purchases: Subtractor at none against Math Farm's 3. Math Farm's advantage is iOS requirement (8.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Math Farm sells 3 one-off in-app purchases. Subtractor asks for nothing beyond the download.

Math Farm ships an update every 4 days, Subtractor every 8 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Math Farm | Subtractor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Size | 28 MB | 0 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [webgearing ag](https://appshunter.io/developer/299615628) | [David Kelen](https://appshunter.io/developer/1796712157) |

## What reviewers say

### Math Farm

[App page](https://appshunter.io/ios/app/math-farm-easy-math-learning-for-kids/id1200329247)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock difficulty 20 | $0.99 | one-time |
| Unlock difficulty 50 | $0.99 | one-time |
| Unlock difficulty 100 | $0.99 | one-time |


### Subtractor

[App page](https://appshunter.io/ios/app/subtractor-by-mather/id6742201502)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Farm free?

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

### Is Subtractor free?

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

### Do Math Farm or Subtractor have ads?

Neither Math Farm nor Subtractor shows ads.

### Which is updated more often, Math Farm or Subtractor?

Math Farm ships an update every 4 days, and Subtractor every 8 days. Most recently, Math Farm was updated on October 26, 2026 and Subtractor 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.*