I am working on https://budgetflow.cc
It is a budgeting tool that allows you to create budgets and visualize them as interactive Sankey diagrams. You can configure smart "pockets", which can automatically send excess cash or take missing cash from other pockets. It also allows you to invite other users to shared budgets, so you can use it to plan budgets with roommates or your partner. Currently I am thinking about ways to make it into a viable business, but it is still not quite there yet where it needs to be for that.
replies(1):