Comparison

HTML Dual Viewer vs WebPen

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

Head to head
About

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.

Highlights
  • Dual screen HTML viewer
  • Syntax highlighter
  • Google search integration
  • Real-time HTML source updates
  • Adjustable screen width
  • Full screen mode
Features
Read full description

*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 !!

About

WebPen

Write, test, and run HTML, CSS, and JavaScript code directly on your mobile device. This app offers a clean editor with live preview and the ability to instantly execute AI-generated code. Save your projects and share them easily.

Highlights
  • Code Editor for HTML/CSS/JS
  • Instant AI Code Execution
  • Live Code Preview
  • Save and Store Projects
  • Customizable User Interface
  • Quick Code Sharing
Features
Read full description

Want to write or test HTML, CSS, and JavaScript right on your phone? This app makes it simple: edit your code and see the result instantly. Even better—you can paste in AI-generated code and run it with just one tap! Key Features: Code Editor: Clean, easy-to-use editor for HTML/CSS/JS. AI Code Ready: Instantly run code generated by AI tools. Live Preview: Write and see the result immediately. Save Your Work: Store projects and pick up anytime. Customizable UI: Change fonts and themes to fit your style. Quick Sharing: Copy or share your code with ease. Perfect for learning, coding practice, or testing AI-generated web code on the go!

Screenshots

HTML Dual Viewer3 screens
WebPen4 screens

Verdict

The call

The clearest difference is review sentiment: WebPen at 60% against HTML Dual Viewer's 0%. WebPen also leads on rating (3.7 vs 2.7). HTML Dual Viewer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support 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. WebPen sells 1 one-off in-app purchase. HTML Dual Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

WebPen holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews point the same way: 0% of HTML Dual Viewer's written reviews are positive against 60% of WebPen's.

UpkeepUpdate frequency

HTML Dual Viewer ships an update every 3 weeks, WebPen every 8 months. The most recent releases landed on August 15, 2026 and June 1, 2026 respectively.

Scorecard7 real differences · 3 level
HTML Dual Viewer versus WebPen: the parameters behind the verdict, then further details
ParameterHTML Dual ViewerWebPen
PriceFreeFree
Rating2.7 (3 ratings)3.7 (7 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings37 — better
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.4 — better15.6
Further details — not scored
Size16 MB24 MB
Age rating17+4+
DeveloperMakoto Nishimoto伟强 周

Customer experience

HTML Dual Viewer

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

WebPen

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

HTML Dual Viewer

No in-app purchases

1 purchases

WebPen

One-time1
  • Remove Ads$1.99

Questions

Is HTML Dual Viewer free?
HTML Dual Viewer is free to download, with no in-app purchases.
Is WebPen free?
WebPen is free to download, with in-app purchases available.
Which has better reviews, HTML Dual Viewer or WebPen?
WebPen is rated higher. HTML Dual Viewer averages 2.7 out of 5 from 3 ratings, while WebPen averages 3.7 from 7 ratings.
Do HTML Dual Viewer or WebPen have ads?
WebPen shows ads; HTML Dual Viewer does not.
Which is updated more often, HTML Dual Viewer or WebPen?
HTML Dual Viewer ships an update every 3 weeks, and WebPen every 8 months. Most recently, HTML Dual Viewer was updated on August 15, 2026 and WebPen on June 1, 2026.

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