Application for invoice

I'm trying to find accounting program option or a great invoicing. A program that works well for me could be an iPhone app or a web-based app. I believed I would be more successful finding something that was free. It looks like every program that advertises as a free app is not truly free. I 'm at least looking for a fine looking invoice template that I can use to create invoices for my customers if I can't locate an invoicing program that is free. Please, don't urge invoice templates from software that cost money, like Microsoft products.

Once I find something great I'll be sure to pay it forward in this newsgroup and in others.

Thanks for your help web!