Appointments and Billings Pro

My appointments are in osx/iphone calendar. I use a software workaround to create invoices based on IMPORTING my calendar appointments by client. I was hoping Billings pro would play with osx/iphone calendar. So I still like Billings Pro features, but I cant use it because it is not able to import my actual schedule. Using a different calendar program such as Daylite does not satisfy my needs.

staticbird80 about Billings Pro: Time & Invoice