Create a group, jot down expenses and hit a button, it's that simple. You can use that group as many times as you want and add or remove people.
Not long ago we tracked expenses of a group of family and friends with paper and pencil. Writing, noting down, doing the accounts, erasing, adding, making the final calculation... Ponina gives you the option to have all that on your phone. The best option to square your expenses is to create a group or join one, and Ponina will automatically do all the math for you.
What are you waiting for?