E Hampton Beagle
"Simple Start: $13/month – Includes the ability to create invoices and estimates and reconcile bank transactions. One user only, though you can share data with up to two accountants." - E Hampton Beagle
Suzanne Bastien
Essentials: $27/month – Adds an accounts payable function to track and pay bills. Up to three users. - Suzanne Bastien
Corey Sevier
Plus: $40/month – Adds support for inventory and the ability to prepare 1099s. Up to five users, as well as unlimited users who have only the ability to view reports or enter hours on their timesheets. - Corey Sevier