JavaScript Anywhere JSAnywhere vs HTML Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JavaScript Anywhere JSAnywhere
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.
- Write JavaScript, HTML, CSS
- Internal browser preview
- Console logs and errors
- Import/export via Dropbox
- Project templates
- Wi-Fi server
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Programming editor in your pocket. JavaScript Anywhere is one of the oldest development environments on iOS since 2010. It's a simple and portable editing tool for web engineers and designers. [Features] - Write JavaScript, HTML, and CSS source code. - Preview on the internal browser. - Show console logs or errors. - Import project / Download images from the web. - Send e-mail / iTunes file sharing to export. - Configure editor styles, and syntax highlighting. - Simple server for Wi-Fi - Export to / Import from Dropbox. - Project templates (Basic/jQuery/React/Bootstrap/p5) That's all. JSAnywhere is minimal forever. Happy coding! --------------- Featured in: * The magazine "Mac People" in September 2013 issue. * "Apps for Developers" on App Store collection by Apple in June 2015.
HTML Viewer
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HTML Viewer opens and reads any HTML file in a clean, fast, fully offline view — no clutter, no internet needed. Open an HTML or XHTML file from Files, Mail, a download, or the share sheet, and read it beautifully in seconds. Key features: • Open HTML & XHTML files from anywhere — Files, Mail, downloads, or the share sheet • Clean reading view — fast, distraction-free, easy on the eyes • Fully offline — read without an internet connection • Recent files — jump back to what you were reading • In-app search — find the page or text you need • Bookmarks — keep the pages you return to • Dark mode — comfortable reading day or night Great for reports, articles, saved web pages, AI-generated HTML, e-tickets, and exported documents — anytime, anywhere. Download HTML Viewer and open any HTML file in a tap. This app is using the standard Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | JavaScript Anywhere JSAnywhere | HTML Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (459 ratings) — better | — |
| Positive reviews | 55.1% of reviews | — |
| Number of ratings | 459 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 54 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Tatsuya Tobioka | 明航 李 |
Bugs and requests
JavaScript Anywhere JSAnywhere
Reported bugs
4 issues- 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
9 requests- 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
Show 4 moreShow fewer
- Integrate with cloud storage (e.g. iCloud, Google Drive)
- Add a JavaScript console for debugging
- Customize keyboard with common coding characters
- Implement a full-screen mode
HTML Viewer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JavaScript Anywhere JSAnywhere
No in-app purchases
HTML Viewer
- Unlimited access$4.997 Days
- Unlimited access$24.991 Year
Questions
Is JavaScript Anywhere JSAnywhere free?
Is HTML Viewer free?
Do JavaScript Anywhere JSAnywhere or HTML Viewer have ads?
Which is updated more often, JavaScript Anywhere JSAnywhere or HTML Viewer?
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