The app is soooo slow with bugs everywhere. Several times when buying and selling it frozen causing me to have to restart and losing money due to price changes. The app also wouldnt let me cash out but I managed to online. Customer service were slow and interested. Lastly watch out for the incredibly high fees. If you havent got loads of money to invest then find another app. 99p fee for a few pounds of buying. Then selling more fees! So small trades in low value crypto is pointless. Forget it!