Just tried using the B4UFLY app which apparently no long works. Basically, it gives you four new options.
What’s the difference, which is better and which do you use to check flight restrictions and get authorizations & waivers? The first link actually takes you to AirHub which, at first glance, seems to be a good program. Not sure about the rest. Which one do you use?

What’s the difference, which is better and which do you use to check flight restrictions and get authorizations & waivers? The first link actually takes you to AirHub which, at first glance, seems to be a good program. Not sure about the rest. Which one do you use?
