QuickBooks Payment Gateway for Gravity Forms
QuickBooks (Intuit) Payment Gateway provides an easier, cost effective and simple alternative for a small business for accepting credit cards. Intuit gives you low rates, the best service, and no contract required.
And this WordPress Plugin allows the Gravity Forms plugin to accept credit card payments on your site through QuickBooks (Intuit) Merchant Account.
Important Notes : Make sure your site is SSL enabled.