Meludia - Listening exercises and to sharpen your ear and music theory skills
Headspace - Meditation made simple. Brilliant things happen in calm minds.
GNU Solfege - GNU Solfege is free music education software.
Calm - Calm.com can help you reduce stress and increase calm.
Perfect Ear - A simple yet advanced application for improving your solfege skills.
Synctuition Meditation Program - Synctuition Meditation Program is a world’s most leading meditation app that comes with brand new 3D sounds that enhance the quality of sleep significantly.