InSync is a simple budget tracking app that can be linked with others so that you can stay "in sync" on your monthly finances. The budget is reset every month (a day of your choosing). You may share your budget with as many people as you'd like and can unlink the accounts at any time.
This app was made specifically for couples in mind but can be used by a solo user just fine too!
Coming soon to this application: a shared notepad for tracking items such as shopping lists or chores.
This app is also available on other mobile operating systems.