I was tired of all the bill splitting apps, that either need a subscription, limit you in the core functionalities, or are full of ads. So i wrote my own. Its not as shiny yet, but it is completely free, has no ads, doesn't try to sell you some other app, or is loaded with trackers etc. Its just a small piece of software that helps you split bills.
You dont need any account, or registration. When you create a group, you get a group code. Share it with everyone you like and they can join the group.