Spend Together is described as 'App dedicated to help you and your friends manage joint expenses painlessly. It’s suitable for trips with friends, roommates, couples or any other IOUs. Public beta: https://testflight.apple.com/join/plMhyWoV' and is an app. There are more than 25 alternatives to Spend Together for a variety of platforms, including Android, iPhone, Web-based, Windows and Linux apps. The best Spend Together alternative is HomeBank, which is both free and Open Source. Other great apps like Spend Together are MoneyManager Ex, Firefly III, Splitwise and KMyMoney.