ActivityWatch is an open-source, privacy-focused app that tracks time spent on devices across multiple platforms. It offers detailed insights into app usage, project time allocation, and screen habits, helping users improve productivity and understand their digital behavior. Features include browser and editor plugins, local data storage, and (future) synchronization across devices. The project is community-driven, accepting contributions and donations to support its ongoing development. Users can find support and engage with the community through various online channels.