sabihul2110/SplitEase ? reverse-engineered prompt

Build me a simple app for splitting expenses between friends.

I want people to be able to create a group, add bills, choose who paid, split the cost between everyone, and see who owes who at the end. Make it easy to track balances over time and show a clear summary of what each person still needs to pay. If it makes sense, include both a web version and a mobile friendly version, with shared logic where possible, and a backend that stores the groups, expenses, and balances in a database.

Please keep the design clean and easy to use, since this is for regular people not power users. Add the basic pages and flows someone would expect, like creating a group, adding an expense, viewing the list of expenses, and checking balances. If you need to look up anything current while building it, go ahead and check the latest docs online.