Comparison

Source Viewer Lite vs CheckSite

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

Head to head
About

Source Viewer Lite

View the HTML, CSS, and JavaScript source code of any website. Highlighted code, extracted links, and image collections are available. Save bookmarks, toggle word wrap, and copy/paste code easily.

Highlights
  • View HTML, CSS, and JavaScript source
  • Highlighted code elements
  • Extract and follow embedded links
  • Collect and view images
  • Save images to photo album
  • Bookmark management
  • Copy and paste code
Features
Read full description

Description Whether you are a web designer or just curious - this application is for you. Source Viewer shows the HTML, CSS and Javascript source code of any website (upgrade required). Features: - Tags, keywords and CSS attributes are highlighted with a different color. - It extracts the links which are embedded into HTML and CSS so that they can be followed easily. - It collects all images from the HTML and CSS which can be viewed separately in a list and full screen. - images can be saved to the photo album - save bookmarks - toggle word wrap - copy and paste code to clipboard - open the URL in the browser and send it by email - support for the iPhone 6 and 6+

About

CheckSite

Features
Read full description

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

Source Viewer Lite4 screens
CheckSite2 screens

Verdict

The call

The clearest difference is in-app purchases: CheckSite at none against Source Viewer Lite's 1. Source Viewer Lite's advantage is iOS requirement (6.0 vs 14.0). On price, update cadence, ads 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. Source Viewer Lite sells 1 one-off in-app purchase. CheckSite asks for nothing beyond the download.

UpkeepUpdate frequency

Source Viewer Lite ships an update every 9 months, CheckSite every 13 months. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Source Viewer Lite versus CheckSite: the parameters behind the verdict, then further details
ParameterSource Viewer LiteCheckSite
PriceFreeFree
Rating1.1 (9 ratings) — better—
Positive reviews2.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 9 months — betterEvery 13 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS6.0 — better14.0
Further details — not scored
Size1 MB1 MB
Age rating17+17+
DeveloperPiet JonasColorize

In-app purchases

1 purchases

Source Viewer Lite

One-time1
  • Source Viewer Upgrade$0.99
None

CheckSite

No in-app purchases

Questions

Is Source Viewer Lite free?
Source Viewer Lite is free to download, with in-app purchases available.
Is CheckSite free?
CheckSite is free to download, with no in-app purchases.
Do Source Viewer Lite or CheckSite have ads?
Neither Source Viewer Lite nor CheckSite shows ads.
Which is updated more often, Source Viewer Lite or CheckSite?
Source Viewer Lite ships an update every 9 months, and CheckSite every 13 months. Most recently, Source Viewer Lite was updated on September 28, 2026 and CheckSite on September 20, 2026.

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