# Design Patterns Illustrated vs Numerithm

The clearest difference is in-app purchases: Design Patterns Illustrated at none against Numerithm's 1. Numerithm's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 16.6). On price and ads there is nothing between them.

Both are free to download. Numerithm sells 1 one-off in-app purchase. Design Patterns Illustrated asks for nothing beyond the download.

## The numbers

| Metric | Design Patterns Illustrated | Numerithm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 8 MB | 32 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Apps Foundry Inc.](https://appshunter.io/developer/1772141640) | [Space 64 LLC](https://appshunter.io/developer/1769185943) |

## What reviewers say

### Design Patterns Illustrated

[App page](https://appshunter.io/ios/app/design-patterns-illustrated/id6736484312)

**Features:** macOS Compatibility

**In-app purchases:** none


### Numerithm

[App page](https://appshunter.io/ios/app/numerithm-math-and-coding/id6790628328)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Unlock | $5.99 | one-time |


## Frequently asked questions

### Is Design Patterns Illustrated free?

Design Patterns Illustrated is free to download, with no in-app purchases.

### Is Numerithm free?

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

### Do Design Patterns Illustrated or Numerithm have ads?

Neither Design Patterns Illustrated nor Numerithm shows ads.

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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.*