It is at https://www.astro-physics.info/index.htm?tech_support/software/apcc/apcc-download
You can navigate there from the main A-P hom epage by clicking Software Updates.
P.S. I agree with Mike's recommendation. The ability to build GoTo and Pointing models in APPC-Pro / APPM alone is worth the price differential.
I also have the 1100 and started with APPC-Standard, but upgraded.