# JavaScript Anywhere JSAnywhere vs HTML Viewer

The clearest difference is in-app purchases: JavaScript Anywhere JSAnywhere at none against HTML Viewer's 2. HTML Viewer's advantage is ads (none vs shown) and update cadence (monthly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. HTML Viewer sells 2 in-app purchases, starting at $4.99 per 7 days. JavaScript Anywhere JSAnywhere asks for nothing beyond the download.

JavaScript Anywhere JSAnywhere ships an update every 2 months, HTML Viewer monthly. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | JavaScript Anywhere JSAnywhere | HTML Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (459 ratings)](https://appshunter.io/ios/app/javascript-anywhere-jsanywhere/id363452277/reviews)** | — |
| Number of ratings | **459** | — |
| Positive reviews | 55.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 54 MB | 26 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuya Tobioka](https://appshunter.io/developer/363452280) | [明航 李](https://appshunter.io/developer/1823569127) |

## What reviewers say

### JavaScript Anywhere JSAnywhere

[App page](https://appshunter.io/ios/app/javascript-anywhere-jsanywhere/id363452277)

This app provides a portable programming editor for web development on mobile devices. It allows users to write and preview JavaScript, HTML, and CSS code, with features like console logging and file sharing. It's designed for web engineers and designers needing a simple, on-the-go coding solution.

**Highlights:** Write JavaScript, HTML, CSS, Internal browser preview, Console logs and errors, Import/export via Dropbox, Project templates, Wi-Fi server

**In-app purchases:** none

**What reviewers like**

- 🚀 Constant use
- 🚀 Amazing app
- 🚀 Great for learning
- 🚀 Perfect for coding on the go
- 👍 Simple but effective

**What reviewers complain about**

- 🐛 Crashes
- 🐛 Bugs
- 🐛 Doesn't work
- 🐛 Issues with CSS and JavaScript
- 🐛 Compatibility problems

**Reported bugs**

- Crashes when creating new projects
- CSS and JavaScript changes not reflected in output
- Incompatible with newer iOS versions
- Unexpected behavior with certain JavaScript features

**Requested features**

- Add ability to save files
- Improve syntax highlighting
- Add line numbers
- Support for more file types (e.g. TypeScript, SCSS)
- Ability to create and manage multiple projects


### HTML Viewer

[App page](https://appshunter.io/ios/app/html-viewer-htmly/id6780105308)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $4.99 | per 7 days |
| Unlimited access | $24.99 | per year |


## Frequently asked questions

### Is JavaScript Anywhere JSAnywhere free?

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

### Is HTML Viewer free?

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

### Do JavaScript Anywhere JSAnywhere or HTML Viewer have ads?

JavaScript Anywhere JSAnywhere shows ads; HTML Viewer does not.

### Which is updated more often, JavaScript Anywhere JSAnywhere or HTML Viewer?

JavaScript Anywhere JSAnywhere ships an update every 2 months, and HTML Viewer monthly. Most recently, JavaScript Anywhere JSAnywhere was updated on September 29, 2026 and HTML Viewer on September 24, 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.*