I was browsing for alternatives the other day, the F80 guys can get the KW DDC which is based on the V3 and reviews very positively from the posts I have read. Looks like it's also available for the e9x platform but I haven't see any reviews anywhere. The f8x version is compatible with the existing EDC button, based on the product description the e9x version isn't compatible with the existing button which has maybe put people off (that and the price). Having multiple options through an App does sound interesting though...
https://www.turnermotorsport.com/p-3...table/?pdk=AQE
Edit - heres the only DDC review I could find for the e9x platform
https://www.m3post.com/forums/showthread.php?t=1328497