# JavaScript前端面试手册(JSea) vs API Zen

The clearest difference is update cadence: JavaScript前端面试手册(JSea) at every 10 days against API Zen's every 2 months. API Zen's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. JavaScript前端面试手册(JSea) sells 1 one-off in-app purchase and API Zen sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

JavaScript前端面试手册(JSea) ships an update every 10 days, API Zen every 2 months. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | JavaScript前端面试手册(JSea) | API Zen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (9 ratings)](https://appshunter.io/ios/app/javascriptjsea/id6444237224/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 7 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [雷 戴](https://appshunter.io/developer/696880612) | [Jaseem Valiya Valappil](https://appshunter.io/developer/1714873997) |

## What reviewers say

### JavaScript前端面试手册(JSea)

[App page](https://appshunter.io/ios/app/javascriptjsea/id6444237224)

Prepare for front-end developer interviews with this app. It provides tutorials on JS basics and algorithms, plus over 1000 interview questions with detailed answers for JavaScript, Angular, ReactJS, and VueJS.

**Highlights:** JS Basics Tutorial, JS Algorithms Tutorial, 1000+ Interview Questions, Detailed Answers, Angular, ReactJS, VueJS Coverage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Pro | $0.99 | one-time |


### API Zen

[App page](https://appshunter.io/ios/app/api-zen/id6471152115)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thanks | $3.99 | one-time |
| Thank you | $5.99 | one-time |
| Thank you very much | $7.99 | one-time |


## Frequently asked questions

### Is JavaScript前端面试手册(JSea) free?

JavaScript前端面试手册(JSea) is free to download, with in-app purchases available.

### Is API Zen free?

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

### Do JavaScript前端面试手册(JSea) or API Zen have ads?

Neither JavaScript前端面试手册(JSea) nor API Zen shows ads.

### Which is updated more often, JavaScript前端面试手册(JSea) or API Zen?

JavaScript前端面试手册(JSea) ships an update every 10 days, and API Zen every 2 months. Most recently, JavaScript前端面试手册(JSea) was updated on September 10, 2026 and API Zen on September 15, 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.*