This app is a scam. The price freeze is a joke.I put a flight on freeze, had 2 weeks to pay. Charged me $64 to freeze the price at $813. When I went back to pay it the price went to over $2,000. When I asked support they said Hopper will cover up to $100 if the price increases. I would have to pay over 2K still. I could have chosen another flight but all the flights cost a ton more since more time had passed. The freeze fee was non refundable so I lost that $64 and went to Expedia and got one