A free program for Android, by Adam Tychoniewicz.

Drone Spot Finder is a very useful app that helps you plan and find your next drone flight. It is an ideal app for beginners who want to start their drone flight with safety. It has an interesting and easy to use interface that allows you to add your favorite locations and other information about the flight, such as time, weather, altitude, etc. The map is very easy to use and it is very informative. The best thing is that you can add a note for other users and notify them that you plan to fly in a certain area.