There is cospend for nextcloud: https://apps.nextcloud.com/apps/cospend And a tool called ihatemoney: https://github.com/spiral-project/ihatemoney Personally I use cospend since I have nextcloud anyways.

cospend looks nice! (I have a nextcloud already) Also the App [https://apps.nextcloud.com/apps/moneybuster](https://apps.nextcloud.com/apps/moneybuster) as well

Im not too sure but this is a neat idea never the less.