Question: Is there a free app that helps me split bills with friends and roommates?

If you're looking for a free app to split bills with friends and roommates, SplitMyExpenses could be a good choice. It lets you create groups, add friends and bills, and track who owes what. Plus it's got some other features like photo uploads for itemizing receipts, automatic expense imports, and integration with popular payment apps like Venmo and PayPal. It's got a free version with some limitations, but it's a good starting point for shared expense tracking.

Another alternative is Cushion, though it's not primarily designed for bill splitting, it's got some bill-tracking abilities. The app is designed to manage bills, track paid and due bills, and offer insights to help with budgeting. Cushion plans to add split bill abilities in the future, so if you need a more general purpose financial management tool, it's worth a look.

Spreadsheet.com is geared more toward project management and business operations, but it's got a free plan you could use for personal use. It lets you create spreadsheets with different views and integrations, which you could customize to manage shared expenses. But it's likely to be more complicated and less suitable for simple bill splitting.