KeepSafe - Keep your entire photo library safely stored in an encrypted private cloud.
Headspace - Meditation made simple. Brilliant things happen in calm minds.
Hide Secrets - Hide Secrets is an app that allows hiding everything they deem confidential on their smartphone.
Calm - Calm.com can help you reduce stress and increase calm.
AppLock (FOSS) - A privacy App lock FOSS application.
Medito - 100% Free Meditation App that will improve your Mental wellbeing with the help of Guided Meditations, Breathing Exercises, Mindfulness Practices, Relaxing Sounds, and more.