Lowdown is a chat-first AI health coach for iOS. Just say what you ate or did — "eggs and a coffee," "ran 5k" — and it's logged, macros and all, from verified USDA data. Sleep, recovery and training sync automatically from Apple Health and Whoop. It remembers your goal, supplements and trends, then gives you a 30-second daily brief and a weekly review with recommendations. Biohacker results, without the biohacker time. Free iOS beta.