HTML Dual Viewer vs Codable
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 !!
Codable
Inspect web elements directly within Safari on your iPhone and iPad. Debug HTML, CSS, JavaScript errors, and network requests while browsing. Includes tools for responsive design testing and JavaScript scratchpad.
- Safari element inspection
- JavaScript console logging
- Network request analysis
- DOM and CSS inspection
- Responsive layout testing
- JavaScript scratchpad
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Inspect elements in Safari on iPhone and iPad. View HTML and CSS, read JavaScript console errors, review captured network requests, and explore page source and website assets in the Safari page you’re already using. Built for frontend developers debugging the mobile web. Safari inspection • Elements: select a node on the page, browse the DOM, inspect styles, and try local CSS edits. • Console: evaluate JavaScript and read captured logs, errors, and available stack information. • Network: inspect requests observed after capture starts, including available status, timing, and response details. • Source: read the source available to the extension and distinguish it from the live DOM. • Resources: explore scripts, stylesheets, images, and available page storage. Start capture before reproducing a problem. Safari permissions, browser boundaries, and capture timing can limit the evidence available. Codable does not provide every capability of desktop Web Inspector. Tools in the companion app • Resize: test responsive layouts with custom viewport dimensions, device presets, scale controls, and resize handles. • Scratchpad: write and run JavaScript with syntax coloring, code keyboard shortcuts, and document support. Optional Apple Intelligence assistance is available on supported devices. • Extension setup: enable Codable in Safari and practice with the bundled demo website. The Safari extension works in your current Safari page. Resize uses a separate browser session. Optional support Codable is free to use. The Tip Jar offers optional, repeatable one-time purchases through Apple. Tips unlock no features and are not subscriptions.
Screenshots
Verdict
The clearest difference is rating: Codable at 4.3 against HTML Dual Viewer's 2.7. HTML Dual Viewer's advantage is in-app purchases (none vs 5) and iOS requirement (8.4 vs 26.4). On price, review sentiment, ratings volume and update cadence 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. Codable sells 5 one-off in-app purchases. HTML Dual Viewer asks for nothing beyond the download.
Codable holds the better App Store score, 4.3 against 2.7. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
HTML Dual Viewer ships an update every 3 weeks, Codable fortnightly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | HTML Dual Viewer | Codable |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.4 — better | 26.4 |
| Further details — not scored | ||
| Size | 16 MB | 10 MB |
| Age rating | 17+ | 17+ |
| Developer | Makoto Nishimoto | Jeremy Collins |
Customer experience
HTML Dual Viewer
Codable
In-app purchases
HTML Dual Viewer
No in-app purchases
Codable
- Kind Tip$0.99
- Thoughtful Tip$1.99
- Wonderful Tip$2.99
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- Incredible Tip$3.99
- Extraordinary Tip$4.99









