# Design Patterns Illustrated vs Interview Q&A

The clearest difference is iOS requirement: Design Patterns Illustrated at 16.6 against Interview Q&A's 18.4. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Design Patterns Illustrated | Interview Q&A |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 8 MB | 1 MB |
| Requires iOS | **16.6** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Apps Foundry Inc.](https://appshunter.io/developer/1772141640) | [rony yacoby](https://appshunter.io/developer/813733031) |

## What reviewers say

### Design Patterns Illustrated

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Interview Q&A

[App page](https://appshunter.io/ios/app/interview-q-and-a/id6748942373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Design Patterns Illustrated free?

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

### Is Interview Q&A free?

Interview Q&A is free to download, with no in-app purchases.

### Do Design Patterns Illustrated or Interview Q&A have ads?

Neither Design Patterns Illustrated nor Interview Q&A 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.*