ALMOST perfect I use this app with the Crafty vaporizer device instead of the the official app made by s&h. PROS: I prefer this app because I find it to be simpler and more straight forward to use  it has all the same important features. It also gives the exact battery level (0%-100%) instead of the less exact official app which gives battery level in 20% increments. CONS: the only thing that I think must be added to this app are the vibration function controls and sound functions for the connected smartphone device.
October 12 2016