Machaon

Healstack is a personal substance tracker, harm reduction wiki, and health dashboard. Log doses with a journal you can filter and search, browse a 200+ substance wiki with harm reduction data, and see your health trends in one dashboard. Your data stays in your account — no ads, no data sales. FEATURES - Dose logging with journal, filters, and search - 200+ substance wiki with harm reduction information - Health dashboard with trends over time - Private by design Healstack is built for harm reduction: honest information and personal tracking to help you make safer choices.