SupaHydrate is the science-backed water intake tracker and drink water reminder for iPhone & Apple Watch. Built on the peer-reviewed Beverage Hydration Index, it shows how every drink — water, coffee, tea, electrolytes — really hydrates you.
Free download · iPhone & Apple Watch · iOS 16.6+
Screenshots
Log a drink in one tap, watch your true hydration fill up, and see exactly where you stand — on your phone, your watch, and your lock screen.
How It Works
Most water apps just count milliliters. SupaHydrate uses the Beverage Hydration Index (BHI) — published in the American Journal of Clinical Nutrition (Maughan et al., 2016) — plus USDA nutrition data, to measure hydration the way your body does.
Answer a few questions — body weight, activity level, climate — and SupaHydrate calculates the daily water intake that's right for you. No generic "8 glasses" myths.
Water, coffee, tea, juice, milk, electrolyte and sports drinks, even alcohol. Quick-add buttons, widgets, Apple Watch, or just tell Siri — logging takes two seconds.
Every drink is weighted by its Beverage Hydration Index: water = 1.0, electrolytes = 1.1, coffee = 0.85–0.95. Your Hydration Efficiency score shows how well you're really doing.
Drink water reminders that fit your schedule and back off when you're on track — never nagging, never forgotten.
Caffeine, sugar, sodium, and potassium tracked automatically, with real-time warnings when you approach daily limits.
Streaks, weekly and monthly stats, calendar history, and Apple Health sync keep your hydration habit compounding.
Hydration Guides
Evidence-based guides to the questions everyone asks — and how SupaHydrate turns each answer into a daily habit.
The real daily water intake numbers by body weight, sex, and activity — beyond the 8-glasses myth.
Read the guide → 🧮Calculate your personal daily water goal in liters or ounces with a simple formula.
Read the guide → ☕What the research says about coffee, caffeine, and dehydration — with exact numbers.
Read the guide → 🍵How black, green, and herbal tea contribute to your daily hydration.
Read the guide → 🔔Seven proven tactics — and how smart reminders make forgetting impossible.
Read the guide → 🎯Habit-science techniques that actually stick, from streaks to widgets.
Read the guide → 🩺Early symptoms of mild dehydration and how to prevent them before they start.
Read the guide → ⚡When electrolyte drinks beat plain water — and when they don't.
Read the guide → ⌚Set up wrist-based water logging with complications and Apple Health sync.
Read the guide → 🏃Pre-, intra-, and post-workout hydration targets, plus when sports drinks help.
Read the guide →FAQ
Join thousands building a real hydration habit with the only water tracker based on peer-reviewed science. Free on the App Store for iPhone and Apple Watch.