Easy to use, user friendly, clean cut and easy for all parties to understand.

I use FastBill to write my freelance proposals and bills with my own design and logo. I could manage clients, delivery addresses and products like working hours as well. My clients are able to use payment methods to pay my bills. For me, it's important to have a ready to go cloud service to write my bills the way I want. The documents offer a wide selection of variables to use to autofill the bills with my or the clients data. The monthly fees are fair. You can try it for free for one month. I'am paying the next level called complete for 5 Euro/month. With this plan I'm able to write unlimited bills.