Shared Expenses

This app is made for you and your groupmates to keep track of who you owe how much.
It was made by a university student for other students or appartment inhabitants.
See at one glance who owes you and whom do you owe money. Keep track of who bought something and who else is paying for it. Click your name and your mates' names and write down how much money you spent and for what. Every user can see his/her debts, and the debts other people have with them on their smartphone. The users' phones are syncronized with eachother.

Features:
● overview of debts easily updated
● add another user for one time, or add a new groupmate
● shopping list: write down what you need and don't forget it
● table of all expenses (here you can correct your own mistakes if you accidently
uploaded a wrong amount
● if someone gives you the money they owe you, put it in the app and it saves that
the score is balanced
If you have any questions about the app, ask the programmer or just give feedback.
What else do you need in the app? Are there any problems?
I hope this makes your life easier ;)