While the Stratus 3 claims to be compatible with multiple tablet applications other than Foreflight. An important issue Appareo does not make clear is; It can not communicate with other apps AND Foreflight at the same time. So if you are using FlyQ and your co-pilot, or even a passenger in the back fires up Foreflight, the Stratus 3 will switch modes and stop sending data to FlyQ. No warning is seen in FlyQ. Update: I spoke with a representative of Appareo. The proprietary protocol that ForeFlight uses prevents simultaneous operation with the GDL 90 protocol that everyone else uses. They will also update their documentation to make this issue clear.