Audiobook Builder: Compatible as of 2.1.1. Get the latest now!
CheckBook: Compatible as of 2.6.16. Get the latest now!
CheckBook Pro: Compatible as of 2.6.16. Get the latest now!
Return Labels: Compatible as of 1.1.
PixelGriddle 1.1.1: Compatible.
Keep in touch at support@splasm.com if you have any questions!