If you read it very carefully, and then behave very carefully, you can comply with the law. Orrrrrr you can just not bother for your first pass, simply block the EU for now, and release it for them after you go and clean it up later.

GDPR may not prevent it explicitly, but around the world GDPR has a chilling effect on many businesses, small and large, that often results in longer launch delays to covered countries while armies of lawyers double and triple check everything in fear of large fines.