Headspace - Meditation made simple. Brilliant things happen in calm minds.
everyday.app - Every day, it gets a little easier. But you gotta do it every day, that's the hard part.
Calmaria - Breathing exercise for you to relax during this rough time
Momentum - Agile goal and performance management
Online Breathing Timer - Breathe to become calm and regain focus
Karma - Spectacular Test Runner for JavaScript