Plenty. Look at the FAQ on /r/bodyweightfitness: https://www.reddit.com/r/bodyweightfitness/wiki/faq https://www.reddit.com/r/bodyweightfitness/wiki/faq EDIT -

Plenty. Look at the FAQ on /r/bodyweightfitness: https://www.reddit.com/r/bodyweightfitness/wiki/faq https://www.reddit.com/r/bodyweightfitness/wiki/faq EDIT - ah, didn't realize you said app. There is at least one: https://www.reddit.com/r/bodyweightfitness/comments/3bmwzf/introducing_bodyweight_fitness_rbodyweightfitness/ https://www.reddit.com/r/bodyweightfitness/comments/3bmwzf/i... and I've seen a few others but haven't tried them.