Interesting but I don't think I would pay for an app. I prefer buying coins that I think are good value and holding them. I had a small investment in Steem but that's up around 600% in a few months. It could be much more this time next year. ICO's are another interesting option, pick the right ones and I think it can be more lucrative than trading.
RE: How I tripled my balance in 7 days trading crypto (+186%)