Good idea but annoying to have to keep the app open to earn full rewards. Unless you know your route to your destination, this app is worthless to navigate. It would be better to work like Google maps navigation does while driving. Also, makes my phone hot to keep it open. Mining for the coins here and then exchanging them costs a lot of time and electricity than it would be to buy the exchanged coin with dollars. The payout threshold is super high and takes forever to meet the threshold.