Supported Devices
The mobile app is designed to work on most devices running iOS or Android. Note that the app has previously been available (and will continue to work) on older versions of both systems, but updates and new features are only available for recent versions:
iOS
iOS version 12 and above ( iPhone 5S and newer, all iPad Air and iPad Pro models, iPad 5th gen+, iPad Mini 2+)
Android
Android 6.0 (Marshmallow) and above ( too many devices to list, roughly 2015 or newer! )