diwolf writes "For the past few years, I've been looking for a program that would allow me to easily bill clients, integrate easily with PayPal, and allow my designers/programmers to record their time — all without messy spreadsheets or monthly fees. I stumbled across a program called Pancake App that charges a one-time fee of $49 and is, frankly, amazing. Billing, proposals, estimates, payment integration, great support, and a very slick interface. API access allows you to easily connect Gravity Forms to Pancake. There's no monthly fees, no per-user fees, no per-client fees. I have absolutely no interest in any of these companies other than that of a happy customer."
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