The gear in the top right corner will take you into Settings
Flights show the number of flights taken by or imported into Gaggle, the max altitude of any of those flights and the hours.
Recent Flights shows the most recent flight, but tapping on All Flights > will show all the flights listed in Gaggle
Routes shows the most recent route that you have added. Tapping on All Routes > will show all the routes and allow you to add a route
Equipment will show the wings and the motors
Groups will show the groups you are a part of