you should try a binance apps, I use it amazing, even it's not difficult it's very simple. the advantage is of course you don't always have to be in front of the monitor to always watch a chart, because sometimes it makes me bored.
I don't find the ease of using mobile app to see chart and predict price movements. But, undoubtedly, it saves my time to execute trades. Also, it is pointless to suggest someone to use an exchange's mobile app if he doesn't trade there so my opinion is every mobile app is amazing for its own purpose.