Halo is a task management application designed for offline-first use. The app requires no login or account creation, and stores all data locally on the user's device. Its primary function is to help individuals organize and track tasks through a streamlined interface that prioritizes visual design and tactile interaction. The application includes several distinctive features. It offers five handcrafted color themes named Cloud, Midnight, Sakura, Forest, and Sand, each with custom color palettes, surface tones, and accent pairings. Task completion is accompanied by a soft violet glow animation called the Halo Bloom, and a gentle haptic pulse provides physical feedback. Swipe gestures allow users to complete a task by swiping right or delete it by swiping left. A streak counter tracks consecutive days of task completion and displays confetti bursts at milestones of 7, 30, and 100 days. The interface uses fluid, spring based animations throughout. Typical use cases involve daily personal task management where users can add, complete, and delete tasks without an internet connection. The offline-first design ensures data never leaves the device, making the app suitable for users who prioritize privacy or work in environments with limited connectivity. The onboarding and marketing approach relies on a 15 second screen recording demonstration rather than extensive written instructions. The app is available at no cost and operates entirely on the device with no cloud synchronization or account requirements.