kittysplit
Kittysplit simplifies sorting out expenses among a group: no registration, free of charge, with an easy 3-step wizard to walk you through creating the event, and a link to share with everyone who was there.
Rankings by 
Национальный рейтинг
24th
in GermanyРегиональный рейтинг
123rd
in Western EuropeГлобальный рейтинг
527th
worldwide