I tried to use a few other programs for quotes and proposals, but Quote Roller is the easiest to use, and it integrates with FreshBooks. You can basically just drag-and-drop things into it. But the #1 reason I chose Quote Roller is because of the integration with FreshBooks.
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1%Stacklist Startups Are Using Quote Roller
Quote Roller helps to automate and streamline proposal creation, allowing users to create, send, track and electronically sign sales proposals in minutes.
Visit the website: http://www.quoteroller.com/