Causal

Most health apps show you numbers. Causal shows you cause and effect. Causal connects your Apple Health biometrics with quick daily check-ins to reveal which of your habits actually move your sleep, heart-rate variability, resting heart rate, and recovery personalized to your body, not population averages. How it works • Connect Apple Health (read-only) for sleep, HRV, resting heart rate, and workouts • Answer short, 5-second check-ins that pop up during your day: caffeine, stress, workouts, alcohol, and more • Causal links the two together and surfaces a plain-English insight: "Caffeine after 2 PM delays your deep sleep by 35 minutes" • See how each factor ranks as a lever for your own biometrics, and where you stand versus similar profiles Why check-ins instead of manual logging? Manual logging is biased. You remember the good days and forget the rest. Causal prompts you at lightweight moments during waking hours, so the picture reflects your real life with almost no effort. Built private by default • Read-only access to a limited set of Apple Health metrics. Causal never writes to your health data • Product analytics are turned off • Delete your account and all associated data anytime, right from the app Causal is a personal wellness and self-knowledge tool. It does not diagnose, treat, or prevent any medical condition.