# Enigma JS vs Frontend Milo

The clearest difference is ads: Frontend Milo at none against Enigma JS's shown. Frontend Milo also leads on update cadence (every 4 days vs every 14 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Enigma JS sells 1 one-off in-app purchase and Frontend Milo sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Enigma JS ships an update every 14 months, Frontend Milo every 4 days. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Enigma JS | Frontend Milo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yesno Labs](https://appshunter.io/developer/1704491583) | [Lei Jin](https://appshunter.io/developer/1291501757) |

## 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 |


### Frontend Milo

[App page](https://appshunter.io/ios/app/frontend-milo-interview-ready/id6754392148)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $6.99 | per month |
| 6 Months | $24.99 | per 6 months |
| 12 Months | $34.99 | per year |


## Frequently asked questions

### Is Enigma JS free?

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

### Is Frontend Milo free?

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

### Do Enigma JS or Frontend Milo have ads?

Enigma JS shows ads; Frontend Milo does not.

### Which is updated more often, Enigma JS or Frontend Milo?

Enigma JS ships an update every 14 months, and Frontend Milo every 4 days. Most recently, Enigma JS was updated on September 8, 2026 and Frontend Milo on September 9, 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.*