Simple Start- You can create estimates and invoices, download bank transactions and there is a mobile app for when you are on the go.
Essentials- Essentials has the same features that you get with Simple Start plus you can manage and pay bills, and you can have multiple users on one account.
Plus- Plus gives you all of the features in Essentials, you can also track inventory, prepare and print 1099s.
Pro 2017- Track income and expenses, up to 3 users invoicing, run 100+ reports, send estimates, track sales tax, manage bills, track time, track inventory and list limits.
Premier 2017- Includes everything in Pro plus, 150+ industry specific reports, industry specific features, create and manage budgets, pay 1099 contractors and up to 5 users.
Enterprise- Includes everything in Premier plus, 150+ advanced reporting, advanced pricing, advanced inventory, up to 30 users with advanced roles, unlimited 24/7 support. data backups and upgrades.