Source Viewer XL vs Radius on Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Source Viewer XL
View the HTML, CSS, and JavaScript source code of any website. Highlighted syntax, extracted links, and image galleries make code analysis easy. Save images, bookmarks, and history for later.
- Syntax highlighting for HTML, CSS, and JavaScript
- Extracts and follows embedded links
- Lists and views all website images
- Saves images to photo album
- Bookmark and session history management
- Copy/paste code functionality
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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. 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. - save images to the photo album - save bookmarks - session history list - toggle word wrap - copy and paste code to clipboard - open the URL in the browser and send it by email
Radius on Map
Draw circles on a map to visualize areas of interest. Customize radius, color, and opacity, then share a link to your map viewable in any browser. Supports various coordinate and distance formats.
- Draw radius circles on map
- Customize fill and perimeter
- Add name and notes
- Support for multiple coordinate formats (UTM, MGRS)
- Support for various distance units
- Shareable map links
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Easily make a radius on a map and share a url showing the radius via email or text message that can be viewed with any browser. Properties for each radius: - Center coordinate - Radius - Fill color and opacity - Perimeter color and opacity - Name - Notes (optional) Coordinate formats include: - Degrees - Degrees, Minutes - Degrees, Minutes, Seconds - UTM (Universal Transverse Mercator) - MGRS (Military Grid Reference System) Distance units include: - Kilometers - Miles - Nautical miles - Meters - Yards - Feet Loading satellite maps requires an internet connection. Datum used is WGS-84. Please visit the support page for more details.
Screenshots
Verdict
The clearest difference is price: Radius on Map at Free against Source Viewer XL's $1.99. Radius on Map also leads on update cadence (every 4 months vs every 28 months) and ratings volume (17 vs 3). Source Viewer XL's advantage is rating (4.7 vs 3.1). On review sentiment, ads and in-app purchases 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
Radius on Map is free to download; Source Viewer XL costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Source Viewer XL holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Radius on Map has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 57% of Source Viewer XL's written reviews are positive against 59% of Radius on Map's, so the app with the better star average is not the one people write more warmly about.
Source Viewer XL ships an update every 28 months, Radius on Map every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Source Viewer XL | Radius on Map |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.7 (3 ratings) — better | 3.1 (17 ratings) |
| Positive reviews | 57.1% of reviews | 58.8% of reviews — better |
| Number of ratings | 3 | 17 — better |
| Update frequency | Every 28 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | Piet Jonas | TappiApps |
Customer experience
Source Viewer XL
Radius on Map
In-app purchases
Source Viewer XL
No in-app purchases
Radius on Map
No in-app purchases
Questions
Is Source Viewer XL free?
Is Radius on Map free?
Which has better reviews, Source Viewer XL or Radius on Map?
Do Source Viewer XL or Radius on Map have ads?
Which is updated more often, Source Viewer XL or Radius on Map?
Other comparisons
