GroupMe today updated their group chat app to version 4.1, adding a gallery view and a feature called Split, which allows users to split costs and collect money from their group. The company detailed potential uses for the feature on its blog:You can start a Split within any of your groups, just like you can attach a photo or a location. You bought concert tickets for everyone in the group? Attach a Split and get your money back right away, instead of waiting to get cash in person. Buying a group gift? Attach a Split with the total price, and with each person who chips in, the price per person will go down. Collect your money whenever you’re ready.