I have this one

https://www.amazon.com/Akai-Professional-LPK25-WIRELESS-Bluetooth/dp/B01J66AM0G?ref_=bl_dp_s_mw_3016497011

they go on sale for $50 often. black friday coming up. the onboard arpeggiator is sweet for the ios apps that dont have one. But yea Cubasis as of 2.2 supports midi learn. I use it but havent tested it lemme go check again