Inner Balance™ gets your heart, mind, and emotions in sync to improve health, well-being and performance. It is now available for popular Android devices. HEARTMATH® SENSOR REQUIRED: This is the companion app to the Inner Balance sensor. This app requires any of the HeartMath Inner Balance sensors such as Bluetooth® or the Inner Balance USB-C sensor which connects to your phone and clips to your earlobe to measure your heart rhythms. Don’t have an Inner Balance sensor? You can purchase a sens