Radius on Map + vs My RollTarp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radius on Map +
Create and share circular areas on a map with a unique URL. Supports various coordinate and distance units, and allows importing/exporting data in KML format. Ideal for planning and communication.
- Draw radius on map
- Share radius via URL
- Import/export KML files
- Support for multiple coordinate formats
- Support for various distance units
- Customizable radius properties
- No adverts
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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. The full version is a one-time purchase at a reasonable price. There is no recurring 'subscription' . Extra functionality of the full version includes: - Support for landscape and iPad split screen. - Share multiple radii in one url. - Lock a radius center to your current location. - Import radii stored as polygons in a .kml or .kmz file. You can import a file from a cloud service such as iCloud or Dropbox. - Export your radii as polygons saved to a kml file to view in Google Earth™ or other mapping applications. You can attach the .kml file to an email or save to iCloud, Dropbox, etc. - Ability to specify which radii show on the map by selecting them in the list view. - Search for keywords in name and/or notes field to find a specific saved radius. - Custom message header and footer. - No adverts 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.
My RollTarp
Control your electric tarp system remotely with this mobile application. Power your tarp up and down, and open or close it with a single touch, all from your smartphone up to 100 feet away.
- Bluetooth remote control
- Power tarp up/down
- One-touch open/close
- Support for multiple phones
- Up to 100 ft range
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Sioux City Tarp is excited to bring you the FIRST-EVER Mobile App for Electric Tarp Systems. With My RollTarp, you have the ability to completely control and operate our patented LockDown Electric Tarp System right from your smartphone. Our powerful Bluetooth allows you to control your tarp system up to 100 feet from your trailer, giving you more freedom out in the field. Features Include: - Bluetooth range is approximately 50-100 ft - Power up & down from your phone - Open & close your tarp system with a single touch - Pair and use multiple phones for one trailer No need to keep tabs on both your phone and remote. With the My RollTarp App, you can operate everything right from your phone. Rest easy knowing you never have to worry about operating your Electric Tarp System, our control box still comes equipped with a backup remote and a switch right on the trailer.
Screenshots
Verdict
The clearest difference is price: My RollTarp at Free against Radius on Map +'s $5.99. Radius on Map +'s advantage is review sentiment (71% vs 33%) and device support (3 vs 1). On rating, ratings volume, update cadence and ads 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
My RollTarp is free to download; Radius on Map + costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.3 for Radius on Map + against 3.1 for My RollTarp. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews are what separate them: 71% of Radius on Map +'s written reviews are positive against 33% of My RollTarp's.
Radius on Map + ships an update every 3 months, My RollTarp every 4 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | Radius on Map + | My RollTarp |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 3.3 (4 ratings) — better | 3.1 (7 ratings) |
| Positive reviews | 71.4% of reviews — better | 33.3% of reviews |
| Number of ratings | 4 | 7 — better |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | TappiApps | GAMA Electronics, Inc. |
Customer experience
Radius on Map +
My RollTarp
In-app purchases
Radius on Map +
No in-app purchases
My RollTarp
No in-app purchases
