Dinngo - Splitting payments the fun and easy way
Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!
Tricount - Manage and share expenses with friends
/Tab - The simple way to split a bill among friends.
Splittable - Shared living made simple
BillSplit - Split bills with colleagues on Slack