As much as I want to buy a Lifetime Membership, I've previously been burnt buying Flightboard and FlightTrack by Mobiata which was discontinued a few years after that was purchased many years ago. And those were small purchases--though I can't remember the specific amount, not a $250 lifetime membership that Flighty is asking. And FlightTrack at the time was possibly the best app for tracking flights on iOS.
I hope you guys consider maybe putting a sale or adjusting the pricing.