best workout/weighlift app for iphone?

Went back to an iphone because my cat decided she would annihilate my ultra and reduce it to atoms. Was using "simple workout log" on the android which I was very happy with.

The only need I have in an app is to save my own exercises and for it to have statistics showing progress, weight lifted, averages etc and preferably in graphs. 1rm calculator is also great.

Everything else is clutter, the more menus and superfluous features the less I will like it. I just go to the gym, kick my exercises in the behind and leave.