Piano Practice Assistant for Android collects no data.
Music Practice Assistant for iOS collects no user data by default, but allows you to opt in to share your practice data and repertoire with us. No other information is collected. We use this data to improve the app. In order to make improvements, we may collaborate with researchers to produce new analyses of learning and memory based on the combined dataset of all users, but will not otherwise sell or share this information with a third party. We will never use this data to identify, track, or target individuals.