No one can predict the market but most people who can't afford a $10 fee shouldn't be trading single stocks anyways. You don't need the advice of a broker to buy low MER ETFs. Buying a few NYSE stocks is risky, it's better to just buy an index fund and put some bonds into your mix.
Online trading platforms are usually better than the apps, they provide access to analyst reports helping investors make more informed decisions. You can also buy bonds, ETFS, mutual funds, GICs, non-NYSE stocks, use trailing stops, and do a whole lot of other things which you can't do on Robinhood. The fact that you can't buy index funds and that they are selling your information to HFTs concerns me. Robinhood is turning an entire generation into gamblers (speculators) and exploiting them.