Best apps for equipment-less workouts? What's up guys?

I've been in and off the weightloss wagon for about a year and a half now. Total, I was able to lose almost 70 pounds (25/m), but recently gained back around 10 lbs.

I've been doing cardio (stationary bike &amp; occasional running), but will be starting C25K tomorrow. I downloaded several of the Zen Labs apps (push-ups, abs, etc) to give them a shot. But I'd love some suggestions. I've got a free weight set, but it needs a few parts and I need to clean my garage to really get going with it. Otherwise, I really don't have access to equipment.

Thanks!