PinPoint - Check away from you

How long it is away from here?
What's inside a radius of 2km?
Where is a place within a radius of 5 km from the point A and within 3 km radius from the point B?
This app can solve these questions.
Note: This app don't show the route.

Use case

- As long as the residential allowance comes within 2 km from the work place, where is the place within 2 km?
- I'd like to know because it is not understood by the ordinary map application that it is a straight line away from my current location
- You can see how many kilometers away this person is from your current location, but you do not know exactly where you are,Do not you know where you are by calculating from the information of how many kilometers from multiple points?