I'm going to do this more as a casual thing, nothing serious or a high investment stuff. Just looking to scratch that crypto-itch and play around with cryptocurrencies for a bit. so far im still very much a newbie at this and im still reading lots. So what is the best APP to use to trade cryptocurrencies with? the reason for doing it on mobile vs desktop is I do work a fulltime job and I can't take my laptop with. I heard coinbase is one of the top apps to use but the exchange rates are higher than others, so what do you recommend?