MapCircle is available via Google Play.

Documentation is available at http://pantherkitty.software/mapcircle/docs/docs.html.

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What it’s for:

MapCircle enables you to easily visualize distances from some center point by overlaying a circle (or donut) of arbitrary radius over the map.

• Supports both miles and kilometers
• When in ‘donut’ mode, the donut is one unit (mile or kilometer) wide when the radius is greater than one mile, and one-half the radius when the radius is less than one mile. In both cases, the ‘donut’ represents a range of uncertainty.
  • Example 1: suppose the radius is equal to 5 miles. The donut’s inner radius will be equal to 4.5 miles. The donut’s outer radius will be equal to 5.5 miles.
  • Example 2: suppose the radius is equal to 0.5km. The donut’s inner radius will be equal to 0.25km. The donut’s outer radius will be equal to 0.75km.
• When run for the first time, the application will ask for permission to access your device’s location. The app itself doesn’t care where you’re located…but if you refuse to grant permission, the embedded Google map will not display its ‘center map on current location’ target, and you’ll have to center the radius yourself manually.