DiveSafe Nitrox is a recreational diving gas planning app focused on Nitrox. It is a great aid during Nitrox courses. The student can visualize Dalton’s triangle and simulate different scenarios. It is also a great tool for the inactive Nitrox diver to refresh the required Nitrox skills. DiveSafe’s visual interface is very easy to use and self explanatory. Although it’s offered for free, it is a fully functional subset (Nitrox, Recreational) of the DiveSafe app