[Quick question] What crypto trading app to use?

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?

Up , Looking the Same

I use coinbase on my phone. But don't store your coins in an exchange, transfer them to your own wallet for security.

I know some people like shapeshifter for trading, but they don't have the coins Im interested in currently. So i just use bittrex or coinbase on my laptop and keep track of the market with coincap.