Nice solution you built there! Another very easy to use alternative is Kittysplit (https://www.kittysplit.com https://www.kittysplit.com). It's also no account

Nice solution you built there! Another very easy to use alternative is Kittysplit (https://www.kittysplit.com https://www.kittysplit.com). It's also no account, some ads, freemium model, web-only (mobile optimized) and translated in 8 languages. With advanced features like uneven split and currency conversion on a per expense basis. Disclaimer: I'm a co-creator of Kittysplit.