PennyMonet

PennyMonet is a browser-based shared cash book for group money and expense splitting. It has a group balance, a personal overview, splitpots, offsetting, expense claims and a read-only calendar feed. It works on phone and computer browsers and is available in English, Nederlands, Deutsch and Espanol.

It never holds or moves money. The public site has product pages, a FAQ and a demo, and the app itself is behind login. The page states no pricing or free tier.