UnDistracted App - Use social media in a useful way. Control Facebook, YouTube, Twitter, Reddit, Netflix and LinkedIn in a responsible way.
Habitify - The easiest way to keep track of your habits
CUBI - See your life in weeks
Fast Habit Print - Print a page. Track your habit. Free and simple.
Newsfeed Burner - Burn away distractions on Facebook, Linkedin and Youtube
Momentum - Agile goal and performance management