HTML Dual Viewer vs JavaScript Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HTML Dual Viewer
View HTML source code and browse web pages side-by-side. Features a syntax highlighter and Google search integration for easy code checking and site analysis. Allows real-time updates of HTML source as you navigate.
- Dual screen HTML viewer
- Syntax highlighter
- Google search integration
- Real-time HTML source updates
- Adjustable screen width
- Full screen mode
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*Dual View & Google Search & Syntax Highlighter HTML Viewer!! *High quality but simple. Corresponding to search Google, it is a two-screen HTML Viewer. NEW!! Syntax Highlighter like "Sublime text" *Syntax Highlighter is heavy process. If loading time is too long, you had better changing background color to "Blue". (No Syntax Highlighter mode) [How to use] Browser screen left, the right to display the HTML source at the same time . Make it easy to adjust the width of each screen. You can check the HTML source to compare left and right. Because it corresponds also "Google search", you do not need to directly hit the URL. HTML source is also updated in real time when you open a new page. I also support shared from the browser. *Full Screen Mode: Double-tap on source view [Features] Unlike the HTML Viewer to display the hit URL, you can use "Google Search". Because every time you open a new web page, HTML source will be updated automatically, it is also useful to check the entire site. Simple, easy to use and safe operation as well, it is a handy HTML Viewer !! This app is best HTML Viewer !!
JavaScript Studio
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.
- Create web apps with JavaScript, CSS, HTML
- Error checking during coding
- Code on your smartphone
- Save code and ideas
- Supports HTML5
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Use your JavaScript, CSS, html skills to create apps wherever you go. These days many of us we use a smartphone anytime, as a developers sometimes we write code using some text editor to save it, for this reason I developed JavaScript Studio app a smart app that works on your phone, With JavaScript Studio you can create web apps by writing JavaScript code, CSS, Html, Html5. Error Checking? Yes, JavaScript Studio will help on it while coding by inserting a simple comment text. Never Miss any code and idea again Use JavaScript Studio. ARROWAT™ JavaScript Studio.
Screenshots
Verdict
The clearest difference is review sentiment: JavaScript Studio at 100% against HTML Dual Viewer's 0%. JavaScript Studio also leads on rating (4.9 vs 2.7). HTML Dual Viewer's advantage is update cadence (every 3 weeks vs every 10 months) and iOS requirement (8.4 vs 10.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
JavaScript Studio holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 3 and 8 respectively. Written reviews point the same way: 0% of HTML Dual Viewer's written reviews are positive against 100% of JavaScript Studio's.
HTML Dual Viewer ships an update every 3 weeks, JavaScript Studio every 10 months. The most recent releases landed on August 15, 2026 and June 1, 2026 respectively.
| Parameter | HTML Dual Viewer | JavaScript Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) | 4.9 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 8 — better |
| Update frequency | Every 3 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.4 — better | 10.0 |
| Further details — not scored | ||
| Size | 16 MB | 33 MB |
| Age rating | 17+ | 4+ |
| Developer | Makoto Nishimoto | Arrowat LLC |
Customer experience
HTML Dual Viewer
JavaScript Studio
In-app purchases
HTML Dual Viewer
No in-app purchases
JavaScript Studio
No in-app purchases
Questions
Is HTML Dual Viewer free?
Is JavaScript Studio free?
Which has better reviews, HTML Dual Viewer or JavaScript Studio?
Do HTML Dual Viewer or JavaScript Studio have ads?
Which is updated more often, HTML Dual Viewer or JavaScript Studio?
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