Flapper: Private Jet On-Demand

I don't really know at

Great idea. Poorly executed. Terrible app. Sure, I can see the recommended flights for empty leg or charter. However, if I'm booking a private flight, there are specific departure and destination airports I need 99.99% of the time. Can I search flights by airport? No. Can I find a comprehensive listing of flights? Again, no. It's disappointing that it's only good for random browsing. No ability to find actual flights to book. Try XO, Jettly, JSX...?