As a freelance product designer, I can't think of invoicing without Slimvoice. It was a really nice web app. The loss of slimvoice is darker than the darkest sk

As a freelance product designer, I can't think of invoicing without Slimvoice. It was a really nice web app. The loss of slimvoice is darker than the darkest sky. Is there anyway to keep the service alive? I tried to find the founder but found his accounts are permanently deleted. Curious to know the reson and ready to be a part of possible solutions!