Any consideration being given to have the app permanently installed on the WAVE phones?

Has anyone used the app for onboard for their navagator I installed it to my I phone and curious of how well it works Sent from my iPhone using DISBoards
i havnt used it yet but I believe it says to put phone in airplane mode or shut off data or something ...We can use this app without getting extra fees on our phone for data usage? How do I use this but not my data?

We can use this app without getting extra fees on our phone for data usage? How do I use this but not my data?