" I do also have the Ultra Fractal Program which seems a little bit more easier for me"

The main difference I think is that in Ultra Fractal you don't have to do much to get a decent image, and the result of any changes seems a lot more predictable.
In Apophysis it may be a long while before you manage to churn out something useful, but once you do it's that much easier to create interesting variations. Just make small alterations to an already good fractal.