No. Aero only syncs with QuickBooks Online. That said, it’s perfectly possible to use Aero without the QuickBooks integration – about 40% of our users do that.
Your customer list can be imported into Aero and if you want to send your time-tracking data to your QuickBooks Desktop account, you can do that through our T-Sheets integration (currently in Beta testing).
Are you thinking about switching your firm to QuickBooks Online? Here's why one ProAdvisor thinks you should: https://www.aeroworkflow.com/top-5-reasons-use-qbo-firm/