Version 10.9.4 is incredible, and I recommend GaiaGPS without reservation. The record track, pause track, finish track, resume track are now intuitive and user friendly. The ability to choose mapping layers, record, and email tracks to friends including trip data (distance, speed, elevation gain and loss) plus gpx & .kml files, and a whole host of other features now make this an incredibly powerful and useful mapping app. In addition, it is being actively supported and updated very very frequently. One can display a previous trip on the map and follow it in real time. Or one can import a friends .kml file and display it and follow it in the same way in real time. Saved tracks can now be placed in folders and synced to your gaiaGPS cloud account. Too many other useful features to list. This is the mapping app I recommend to backpackers, equestrians, mountain bikers, and hikers without any reservation whatsoever. It is a steal at $20. (I actually pay the additional extra $40 per year for Pro level, but be honest I am doing that more as a show of support for the wonderful job they are doing than the few additional features I get as a result. Truth is youll 99% of the features, which includes all the important ones, when you purchase the $20 app.)