The Novation Launch range of MIDI controllers (Launchpads, Launchkeys, and Launch Controls) are currently compatible only with the iPad version of the Launchpad app.
If your iPad uses a lightning connector, in order to properly power your Launchpad hardware you will need to connect via a USB adapter that has an additional port for a charging cable. (https://www.apple.com/uk/shop/product/MK0W2ZM/A/lightning-to-usb-3-camera-adapter?fnode=85&fs=f%3Dadapter%26fh%3D459d%252B45b0)
Alternatively, if your iPad is USB-C enabled, you can power the device directly through a USB-C to USB adapter. (https://www.apple.com/uk/shop/product/MJ1M2ZM/A/usb-c-to-usb-adapter?fnode=85&fs=f%3Dadapter%26fh%3D459d%252B45b0