MainStage 3.5.2 is a exclusively for Mac, and while official "free" downloads of the full version do not exist, users can access a 90-day free trial through the Official Apple Website to test its live performance features. Version 3.5.2 Highlights
Added over 2,500 new loops and 1,500 patches across various genres like Hip-Hop and Future Bass. Apple MainStage 3.5.2 Free Download
While minimums exist, experts recommend at least 16GB of RAM and up to 72GB of storage for a full sound library installation to avoid performance lag. MainStage 3