Is there a program in the library that uses scalar wave technology at 528 Hz.?
It is useful to get in the habit of checking the program descriptions. Here is the URL https://download.ahaharmony.com/resources/pdf/Aha_Halo_Program_Description.pdf You can search on this page and, yes, you will find the 528 Hz program in the Solfeggio section.
Yes, Aha Halo includes a dedicated 528 Hz program.
There is also a Solfeggio program that includes the complete Solfeggio frequency series, including 528 Hz.
You can find both programs in the Aha Halo program library.