Comparison

JavaScript Anywhere JSAnywhere vs HTML Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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

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.

About

HTML Viewer

Features
Read full description

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

JavaScript Anywhere JSAnywhere4 screens
HTML Viewer3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
JavaScript Anywhere JSAnywhere versus HTML Viewer: the parameters behind the verdict, then further details
ParameterJavaScript Anywhere JSAnywhereHTML Viewer
PriceFreeFree
Rating3.5 (459 ratings) — better—
Positive reviews55.1% of reviews—
Number of ratings459 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size54 MB26 MB
Age rating4+4+
DeveloperTatsuya 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 more
  • 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

None

JavaScript Anywhere JSAnywhere

No in-app purchases

2 purchases

HTML Viewer

Subscriptions2
  • Unlimited access$4.997 Days
  • Unlimited access$24.991 Year

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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