Comment by brundolf

In the years I've been using it the fees have totaled 5.2% of the earnings over that time (current balance - invested, not total account balance). It's not nothing, but personally I place a high value on simplicity and peace of mind in my life, so it's worth it to have a simple and excellent user-experience in the app, as well as the ability to do things like withdraw and deposit with literally the tap of a button.