Chillaa is a free Android application developed by Nuorten mielenterveystalo to help Finnish youth deal with stress and anxiety. This app provides a range of mindfulness exercises, relaxation techniques, and tips to help users manage their emotions and face difficult situations with more confidence.

The app has a simple and user-friendly interface that makes it easy to navigate. Users can access various exercises and tips without the need for a login. Additionally, Chillaa also features content created by other young people, which adds a sense of community to the app. Overall, Chillaa is an excellent app for young people who need help managing stress and anxiety.