CommitSheet was founded by me, Jack Mahoney in Berlin, Germany, in 2018.
I've been writing software for over 8 years in both full-time, independent, and freelance roles. Invoicing was always a problem for me and recently I decided to do something about it.
I built a series of scripts and frameworks to generate invoices based on the work I had done. The code extracted commits from my commit history and repackaged them in simple PDF format. My employers loved the invoices and so I started putting more effort into the idea. Eventually CommitSheet was born and today it helps hundreds of developers to send better invoices.
I truly believe in the product and use it myself. Invoicing is a space in desperate need of disruption and CommitSheets aim to do that. It's a complex task as many people have differing invoice requirement but with your feedback CommitSheet can grow into a tool for every developer.
Give it a go, I think you'll love the results,
I couldn't do this without all the support from the freelance developer community, my loved ones, and a whole lot of coffee! (Feel free to buy me one.)