Need a Weight lifting App

I've used the BodySpace/BodyBuilding.com app successfully. Worth a look in to

JeFit

I use 5 Day Bodybuilding Workout Schedule. It gives exercises by day, number of sets and reps and explains how to do each one. It hits all of the major muscle groups and can be tweaked if you don't have access to some of the equipment.

To log the exercises I use Weight Log. You can log sets, reps, weight and it will count down rest time between sets.

Edited to add: The apps are free, too.