Description:
ZipBooks is an online invoicing software application that lets you send estimates and invoices to you potential customers and existing clients. Track your time, product, and expenses as projects or ad hoc line items. When it is time to invoice clients. we auto detect unbilled activity and prompt you to include any or all of the information. Because we make money when client use our optional payment services, ZipBooks is 100% free, forever.
http://zipbooks.com/
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