Flatastic is a free Android application that helps you organize your daily life with roommates. The app has several features including expenses, cleaning plan, shopping list, and shouts. With Flatastic, you can keep track of expenses and add items to a list with just one click. The cleaning plan feature reminds you when it's your turn to clean and has a points system to make chores more flexible. The synchronized shopping list lets you see what's needed and when, and your roommates get notified when you purchase something from the supermarket. Shouts is a chat feature optimized for flat-sharing.

Moreover, Flatastic offers Flatastic Premium, which provides more functionality, including the ability to export expenses. The app is available for 1,99€ per month or 17,99€ per year. After confirming the purchase, the amount will be charged from your iTunes account. Your iTunes account will be charged again after your subscription is automatically renewed at the end of the subscription period.

Overall, Flatastic is a fantastic app for anyone living in a shared flat. It helps keep your home organized and makes living together more enjoyable.