WebPen vs HTML Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Code Editor for HTML/CSS/JS
- Instant AI Code Execution
- Live Code Preview
- Save and Store Projects
- Customizable User Interface
- Quick Code Sharing
Read full descriptionHide 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!
HTML Viewer
This app allows you to view HTML files directly on your iPhone and iPad, offline and without tracking. It supports full JavaScript and CSS rendering, making it ideal for developers, students, and educators.
- Offline HTML rendering
- Full JavaScript and CSS support
- Import via Files app or Share Sheet
- Dark Mode support
- Pinch-to-zoom functionality
- View source code with syntax highlighting (Pro)
Read full descriptionHide full description
Sitecase is your viewer for local HTML files on iPhone and iPad — local, private and usable offline, with no tracking. Import your HTML files via the Files app or the Share sheet and view them with full CSS and JavaScript support. HTML code saved as a .txt file is shown directly as a page, too. You can also open complete folders with multiple files – entire projects or multi-page websites with images, CSS and JavaScript, not just single files (Pro). Ideal for web developers, students, teachers or anyone who wants to view HTML content on the go. FEATURES: • Full rendering of HTML, CSS and JavaScript • Open whole folders: complete projects made of multiple files – multi-page websites with images, CSS and JavaScript (Pro) • Paste HTML code straight from the clipboard (Pro) • Store an unlimited number of files (Pro) • Dark Mode support • Import files via the Share sheet or the Files app • Shortcuts & Siri: open saved files directly – also as an icon on the Home Screen • Pinch to zoom • Turn network access on or off at any time • View and adjust source code with syntax highlighting – changes only affect the copy in the app (Pro) • Text search within files (Pro) • Manage favorites (Pro) • Talk to devices on your own network, e.g. smart home or heating (Pro) • Adjustable zoom level (Pro) • Turn JavaScript support on or off (Pro) PRIVACY: All your files stay local on your device. The app itself doesn't connect to any server and doesn't use any analytics or tracking services. If an opened page intentionally loads online content, you can turn off network access at any time.
Screenshots
Verdict
The clearest difference is rating: HTML Viewer at 4.7 against WebPen's 3.7. HTML Viewer also leads on review sentiment (96% vs 60%) and ads (none vs shown). WebPen's advantage is monetization model (ad-supported vs freemium) and iOS requirement (15.6 vs 17.6). On price, in-app purchases 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
Both are free to download. WebPen sells 1 one-off in-app purchase and HTML Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
HTML Viewer holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: HTML Viewer has 63 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 60% of WebPen's written reviews are positive against 96% of HTML Viewer's.
WebPen ships an update every 8 months, HTML Viewer every 3 days. Both last shipped on November 5, 2026.
| Parameter | WebPen | HTML Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (7 ratings) | 4.7 (63 ratings) — better |
| Positive reviews | 60.0% of reviews | 95.8% of reviews — better |
| Number of ratings | 7 | 63 — better |
| Update frequency | Every 8 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 24 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | 伟强 周 | Dennis Bortmes |
Customer experience
WebPen
HTML Viewer
In-app purchases
WebPen
- Remove Ads$1.99
HTML Viewer
- Sitecase Pro$5.99









