You can learn with flowkey on a number of different devices.
Devices that are compatible with flowkey
Computers and laptops (PCs, Macs, and Chromebooks/Pixelbooks)
iPads (from 2013 on) with at least iOS 14
iPhones (from 2014 on) with at least iOS 14
Android smartphones with at least Android 7 (the device also needs to have USB host support)
Android tablets with at least Android 7 (the device also needs to have USB host support)
Windows tablets with at least Edge version 80 or with the latest Chrome browser
Please note: Amazon Fire tablets are not supported.