# JavaScript Studio vs LionPulse

The clearest difference is in-app purchases: JavaScript Studio at none against LionPulse's 3. JavaScript Studio also leads on iOS requirement (10.0 vs 16.0). LionPulse's advantage is update cadence (every 3 weeks vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. LionPulse sells 3 one-off in-app purchases. JavaScript Studio asks for nothing beyond the download.

JavaScript Studio ships an update every 10 months, LionPulse every 3 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | JavaScript Studio | LionPulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/javascript-studio/id1358563001/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 33 MB | 17 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arrowat LLC](https://appshunter.io/developer/1358562640) | [LI-YING CHANG](https://appshunter.io/developer/1151898836) |

## What reviewers say

### JavaScript Studio

[App page](https://appshunter.io/ios/app/javascript-studio/id1358563001)

Build web applications directly on your smartphone using JavaScript, CSS, and HTML. This tool offers error checking as you code, ensuring you don't lose your ideas. It's designed for developers who need to write code on the go.

**Highlights:** Create web apps with JavaScript, CSS, HTML, Error checking during coding, Code on your smartphone, Save code and ideas, Supports HTML5

**Features:** macOS Compatibility

**In-app purchases:** none


### LionPulse

[App page](https://appshunter.io/ios/app/lionpulse/id6766887378)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A small treat | $0.99 | one-time |
| A cup of coffee | $2.99 | one-time |
| A box of pastries | $9.99 | one-time |


## Frequently asked questions

### Is JavaScript Studio free?

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

### Is LionPulse free?

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

### Do JavaScript Studio or LionPulse have ads?

Neither JavaScript Studio nor LionPulse shows ads.

### Which is updated more often, JavaScript Studio or LionPulse?

JavaScript Studio ships an update every 10 months, and LionPulse every 3 weeks. Most recently, JavaScript Studio was updated on September 29, 2026 and LionPulse on October 7, 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.*