This is nowhere near as good as Viewranger, the app it is supposed to be 'replacing' - OA has fewer features. less functionality and is far less intuitive. Viewranger, a perfectly good working app is being removed from use for people that have used the product for years and have invested a lot of time and money in supporting and replaced it with a bloated, unuseable app. The fact that the owners of Viewranger have allowed it to be bought-out and asset-stripped for obviously a good cash pay-off is quite standard these days, but just remember that a lot of the VR customerrs are not 'assets' - especially when they have turned their backs on VR and OA completely..