Splittable - Shared living made simple
ChargeOver - ChargeOver automates recurring billing, subscription billing, & payment acceptance. A SaaS that integrates with Xero, Quickbooks, & has an API. Free trial.
EquiTable - Split the bill fairly
MinuteDock - Web-based time tracking software designed to integrate with the Xero accounting package.
Honeydue - The simplest way to manage money, together
Elorus - A super-easy online invoicing & time tracking software