# Enigma JS vs DevQuiz

The clearest difference is in-app purchases: DevQuiz at none against Enigma JS's 1. DevQuiz also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Enigma JS sells 1 one-off in-app purchase. DevQuiz asks for nothing beyond the download.

## The numbers

| Metric | Enigma JS | DevQuiz |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 1 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yesno Labs](https://appshunter.io/developer/1704491583) | [Emma Derbe](https://appshunter.io/developer/1736513605) |

## What reviewers say

### Enigma JS

[App page](https://appshunter.io/ios/app/enigma-js-interview-questions/id1308401829)

This app offers JavaScript quizzes covering common interview questions for web and mobile developers. It provides detailed explanations to help users learn and practice tricky language concepts and essential React/React Native knowledge.

**Highlights:** Common JavaScript interview questions, React and React Native concepts, Detailed explanations for each question, Quizzes for beginners and experienced developers, Practice tricky language parts

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads and unlock content | $9.99 | one-time |


### DevQuiz

[App page](https://appshunter.io/ios/app/devquiz/id6504633286)

**In-app purchases:** none


## Frequently asked questions

### Is Enigma JS free?

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

### Is DevQuiz free?

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

### Do Enigma JS or DevQuiz have ads?

Enigma JS shows ads; DevQuiz does not.

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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.*