Is Billings Pro a web app? Marketcircle Customer Service Team March 25, 2020 20:31 Updated Follow Billings Pro is not a web app; it is a powerful client application for your Mac and iOS devices. To download the latest version of Billings Pro please go to our Downloads page here. Related articles Touring the Billings Pro Interface End of Support for macOS High Sierra and Mojave Billings Pro Compatibility Guide My Billings Pro database appears to have stopped syncing. What can I do? Choosing your Company ID