Part 107 practice test prep

my desire is to give app a 5 rating, the problem I'm having is after I answer several questions, then set my phone down for a few minutes and come back and pick it up. the app will close and will default back to the first question, no matter which category I'm testing from. To the defense of the app, I'm not sure when picking up my phone if I'm touching the screen in a way that causes the problem.

I think the app is good.I take the test this weekend hopefully a lot of these questions will be on the test. I gave it a 4 star because it doesn't give you an explanation when you get one wrong but it shouldn't be that big of a deal you can just search up explainations on the Internet.

The chart do not work well. The app does not give you extensive feedback if your answer is wrong.