Awesome app for tracking 5/3/1 and other well known barbell programs! My favorite app actually for 5/3/1 and I think I've tried almost all of them. The developer is great as well, I used to use the other dedicated Wendler 531 log app and had an issue with restoring backup and got it sorted within a day or two, quick to respond and help. Definitely worth the money buying the 531 template if your doing that program (and probably the other ones too)