harpy is a fully featured Twitter client that focuses on great UI/UX and a clean experience. This project aims to provide a good example for a medium-big sized Flutter app in hopes that it will be useful for some. Some interesting features of the app include: • flutter_bloc for the main state management, using blocs and cubits. • get_it as a service provider that includes the ability to navigate and to show on screen messages from anywhere in the app. • sentry as an online error tracking service to report unhandled exceptions. • Fully featured theme customization. • Fully featured video player using thevideo_player package. • A 'pro' and 'free' android product flavor. Open-source avaliable in GitHub: https://github.com/robertodoering/harpy.git