I do my AP processing with Startools, Photoshop and Nik filters, which are free from Google as a PS plug in.
So many great free tools there in Nik, and unlike Pixinsight, I get PS. (No disrespect to others who use Pixinsight).
Each to their own, I recently presented a talk on AP processing with PS to the ASV members - seemed to be popular too - might load it up here soon if there's interest
