I'm on El Capitan (10.11.1) and Analog Lab is working fine as a standalone and as VSTi/AU in Cubase (8.5), Ableton Live (9.5), Studio One (2/3, latest), Bitwig, Reaper and some others. Don't know why someone has to use Logic or even Garageband...
The 10.11.1 update fixed some AU probs, so - if you haven't yet - better get the update before testing on your system.