Zource vs CheckSite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zource
View web pages and their source code simultaneously with a unique split-screen layout. This tool is designed for web developers to easily inspect and understand website structures.
- Split-screen layout
- View webpage and source code simultaneously
- Web development tool
- Inspect website structures
- Simple interface
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Zource shows any webpage alongside its HTML source, formatted and syntax-highlighted, in one split-screen view. Browse to a URL and see the page render up top while the source code appears below. Drag the divider to resize the panels, search within the source, copy or share it, or open the full-screen code view. Built for developers, designers, and anyone curious about how the web is built. Features: • Live split view: webpage + source side by side • Syntax-highlighted, pretty-printed HTML • Search and highlight in source • Copy, share, and open in Safari • Browsing history • Works on iPhone and iPad
CheckSite
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CheckSite: find potential problems in HTML and CSS When making websites, you need to keep an eye on two types of standards: the official web standards, which are checked by the W3C Validator, and the unofficial standard of making sure that your website actually works as intended on all commonly used browsers. The advantage of using CheckSite is that it checks both, and that it does it automatically for all pages within your website. When done, CheckSite will produce an overview of all potential issues found in all pages, including an easy-to-read summary. Main features • CheckSite is fast and user friendly • Checks against both web standards, known issues, and best practices • Finds links to other pages in your website and checks them as well • Gives an easy-to-read summary of the results The checks • Browser compatibility (e.g. does the page use constructs that are known to cause problems in certain browsers?) • SEO (e.g. does the page adhere to SEO guidelines?) • User experience (e.g. does the page have a favicon?) • Internationalization (e.g. does the page use UTF-8 encoding?) If you like our app, please rate it in the Mac App Store so that we can use your feedback and keep creating updates.
Screenshots
Verdict
The clearest difference is price: CheckSite at Free against Zource's $0.99. CheckSite also leads on iOS requirement (14.0 vs 26.0). Zource's advantage is update cadence (every 3 months vs every 13 months). On ads, 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
CheckSite is free to download; Zource costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Zource ships an update every 3 months, CheckSite every 13 months. The most recent releases landed on September 4, 2026 and September 20, 2026 respectively.
| Parameter | Zource | CheckSite |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (5 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 17+ | 17+ |
| Developer | Kappz LLC | Colorize |
In-app purchases
Zource
No in-app purchases
CheckSite
No in-app purchases









