Trialist — Health Experiments

Hey Product Hunt! 👋 I built Trialist because I was sick of wondering, "Does this actually work?" Taking magnesium? Working out at different times? Trying a new sleep routine? We all experiment with our health, but we never really know if it's helping. The idea is simple: Log when you do something → Trialist pulls your Apple Health data → See if your metrics actually improved on those days Example: - Log "took magnesium" 10 times this month - Trialist compares your sleep on those 10 days vs the other 20 days - Shows you: "Your deep sleep was 18% higher on magnesium days" What makes it different: - Auto-syncs Apple Health - No manual data entry, pulls sleep, HRV, heart rate, 20+ metrics - Real stats - Actual percentage changes, not just streaks - A vs B mode - Test which option is better (morning or evening workouts?) - Calendar view - See patterns at a glance - 100% private - Everything stays on your phone, no cloud Perfect for: - Testing if supplements actually help - Optimizing workout timing - Tracking sleep experiments - Anyone who wants data instead of guesses I'd love your feedback. What kinda experiments would you like to try out? Let's turn self-experimentation into actual science 🧪