I’ so exited about GA4! I’ve worked with GA1 in Sonar and I’ve loved it! It had a few issues but I really like the concept. Last year I’ve moved to Logic Studio and to Mac OS and I would like to purchase GA4 plugin. Has Groove Agent 4 been tested on Mac OS 10.8 and 10.9 yet? There are some postings in German but I didn’t get an answer. Has anyone installed a trial version on Mac 10.8? If it’s working - I’m first in line to purchase it! 
Hi Romualdas,
Groove Agent has been tested on Mac OS 10.8 and 10.9 and comes with an AU version that can be used in Logic.