Don't download this app, Don't fly Spirit!! I paid extra for upgraded seats on my flight to Las Vegas. When I checked into my return flight, using the mobile app, the upgraded seats I paid for were unassigned and unavailable. To make a very very long story short, Spirit Airlines was unwilling to refund the premium that I paid for the seats that I was unable to sit in. Needless to say, I am never flying Spirit again, and I would caution you to avoid them as well. It's just not worth it.