Hydr8 predicts your hydration needs using sweat loss, training load, and wearable data — so you know what to drink, when to drink, and how much.
Gym sessions, Hyrox, running, cycling. Stay ahead of fatigue by predicting fluid loss and electrolyte depletion during training.
Long sessions amplify dehydration risk. Hydr8 forecasts sweat loss and guides intake timing so performance doesn't fade late.
Padel, tennis, and pickleball demand explosive bursts in heat. Hydr8 adapts hydration to rally intensity, court conditions, and match duration.
Optimize hydration for workouts and recovery. Hydr8 tracks sweat loss and electrolyte balance so you stay ready to train.
Explore EngineDesigned for match play in racquet sports. Prepare for intense rallies and long matches with sport-specific hydration protocols.
Explore ApexHydr8 forecasts your hydration trajectory at 30, 60, and 120 minute horizons. Know exactly when you'll fall behind — and what to drink before your session.
A readiness score factoring your hydration status, last night's sleep, recent recovery, and today's conditions. Never start a session already behind.
Estimates sweat loss using heart rate, session duration, and environmental conditions. Post-session recovery targets with Na, K, and Mg guidance.
Maps hydration patterns against your sessions — workouts, competitions, and recovery days over the last 30 days.
Personalized pre-session hydration plans based on conditions, session type, and your body.
Precise recovery windows with fluid and sodium targets from your actual session data.
Cross-platform data synthesis from WHOOP and Apple Health.
Automatically adjusts your targets based on outdoor heat, indoor humidity, and training environment.
Compete with training partners on hydration streaks, session-day targets, and recovery consistency.
Link Apple Health or WHOOP. Hydr8 pulls heart rate, recovery, and activity data automatically.
Weather, recovery status, sleep quality, session schedule — Hydr8 builds your hydration profile.
Forward-looking forecasts at 30, 60, and 120 min. Know when you'll fall behind before it happens.
What to drink, how much, and when — timed to your session and breaks. Recovery protocols after every workout.
Compete with training partners and teammates on hydration streaks, session-day targets, and recovery consistency.
Activate Session Mode before you start. Hydr8 tracks your workout, times hydration reminders, and generates a post-session report with sweat loss and recovery targets.
Multi-session days need a plan. Hydr8 calculates hydration across back-to-back events, adjusting for cumulative sweat loss and declining recovery windows.
Court surfaces amplify heat. Apex factors in surface temperature, direct sun exposure, and indoor/outdoor conditions to adjust your targets in real time.
Pre-match loading, changeover sipping targets, and post-match recovery — timed to your match format and break structure.
Sodium and electrolyte timing calibrated to high-intensity rallies. Reduce cramp risk across long matches and tournament days.
Back-to-back matches with shrinking recovery windows. Apex calculates cumulative sweat loss and adjusts hydration across your full tournament schedule.
"First app that actually tells me when I'll bonk."
— Hyrox athlete
"Helped me stop cramping during long matches."
— Tennis player
"Way better than guessing electrolytes."
— Marathon runner
Download Hydr8 free. Built for athletes who take hydration as seriously as their training.
Coming soon to iOS and Android