Calm - Calm.com can help you reduce stress and increase calm.
FlowVR - Virtual reality app with highly effective guided meditations
Headspace - Meditation made simple. Brilliant things happen in calm minds.
Relay - An extension that adds Discord-style chat to every website
RelaxMyDog - Relaxing music and TV designed for dogs
Timeless | Meditation - Personal practice meditation timer with guided instruction and multi-day courses.