BaseMap has updated their app and you can now have and use unlimited offline maps. You no longer have to select which map is active at anyone time. They are all active at once. Hope that helps.Once for me. It has problems, but the way Basemaps deals with offline maps is unacceptable. I usually don't hunt where there is good reception so offline maps are everything. Basemaps individual offline chunks provide a horrible experience. It needs to be seamless. With onx I download my whole state at low detail to have property boundary info and then get high detail where I'm hunting. Then I can just range wherever and the offline map follows me.