I downloaded the free version and used for a week before buying the + version a few months ago. I have been delighted with its functionality and ease of use. Yes  you do have to pay attention to the guidance given on how to set it up properly  but it is not difficult (I use a Samsung Galaxy Tab 10 and a Motorola Moto G 3 phone using Android Marshmallow). Saving and replaying GPX tracks is easy (I save mine to the cloud)  the map detail excellent  the overlays are handy (I use a Microsoft Earth overlay option at 30%  transparency to give a little more detail to the OSM vector map)  contours and other plug ins are excellent. I am very much hoping that an update with a route elevation profile will come out soon. Overall a first class app  thank you
April 18 2017