I've been working on a tracking app for powerlifters called Intensity. It's focused on progression through custom goals, in-depth stats and PR tracking. It has a bunch of features, so if you want to know more, visit the website: www.intensityapp.com
The main reason I'm posting here is to get your feedback. You guys are the people I'm trying to build this for, so it makes sense to get your opinions on it. So try it out and come back here with feedback and suggestions. The above website has links to the ios, android, windows and desktop versions.