Lull is a lo-fi focus timer application designed for Android and Wear OS devices. Its primary function is to combine calm lo-fi radio playback with structured focus sessions, integrating system-level Android controls to minimize distractions. The app is available through Google Play and offers a companion experience for Wear OS, allowing users to manage sessions from their wrist. Key features of Lull include built-in lo-fi radio station playback that operates within the focus loop, enabling users to start a session and soundscape simultaneously. Focus modes incorporate timer phases, preferences, and session state as core behavioral elements. The Wear OS companion provides mirroring of playback and timer state, with quick actions for start, pause, skip, and reset. The app also includes low-distraction defaults for notifications, alerts, and foreground controls, as well as optional Do Not Disturb support to protect concentration. Typical use involves starting a focus session with a curated lo-fi radio station, adjusting timer phases and mode preferences, and controlling the experience across both phone and watch with minimal friction. The app is designed around system-level focus rather than a floating widget, leveraging Android platform hooks and assistant workflows to make sessions faster to initiate and easier to maintain. It is currently available on Google Play for Android devices, with a Wear OS companion that synchronizes state and controls between devices.