After having used Viewranger for approx 8 years I am finding this app a poor substitute. At the moment I am on holiday in Cornwall. So far done 3 hikes,on each hike the app has stopped 3 times and I have had to restart losing part of track and distance. Yesterday all my challenges disappeared, contacted OA and as they said there was a technical problem, this has now been resolved. However biggest problem is that tracking is stopped if I use the camera, reported this 5 weeks ago but not resolved.