Your body
is a lake

The free HydroCan app for iPhone. It reads your WHOOP or Apple Watch and tells you exactly what to drink, and when.

  • WHOOP
  • Apple Watch
  • Apple Health
Coming soon to the App StoreSee how it works
A WHOOP bandWHOOP
HydroApp Today: a garden lake, full, with koi, and the day’s HydroCan, Hydrolyte and water
An Apple Watch-style smartwatchApple Watch

01 · Connected

Works with what you already wear

Connect WHOOP or Apple Watch once. HydroApp reads the rest by itself, every day. Nothing to type.

  • RecoveryHow ready you are this morning
  • StrainHow hard the day has been
  • SleepWhen you woke up, so your day starts there
  • WorkoutsEvery session, with the sweat it cost
  • Steps and energyMoving about counts too
  • HeartResting rate and variability
A WHOOP bandWHOOP
How it’s worked out: everyday need, heat, training and catching up, adding to 3.6 litres
An Apple Watch-style smartwatchApple Watch

02 · Recovery

See what HydroCan does for your recovery

Every morning HydroApp reads your recovery from WHOOP or Apple Watch. Low? Your plan adds a HydroCan or a Hydrolyte. After a week, it shows your own numbers: how you recover after HydroCan days, against days without.

Dailyrecovery read from your watch
+1HydroCan when you wake up low
7mornings to learn your pattern
  • Recovery card every morning
  • Your plan adapts to how you woke up
  • Your own before and after, from your own data
HydroApp Today: a garden lake, full, with koi, and the day’s HydroCan, Hydrolyte and water

03 · The lake

Fills as you drink. Drains as you sweat.

Your day is a living lake. One look tells you where you stand, without reading a single number.

  • Touch the water and it ripples
  • Four scenes, with the real time of day and weather
  • Every 7 days on plan, something new grows in it
HydroApp Today: a garden lake, full, with koi, and the day’s HydroCan, Hydrolyte and water

04 · Your body

What hydrogen is doing for you

Eight points from brain to muscles, each with what the research shows hydrogen does there: a selective antioxidant, faster recovery, less fatigue, a calmer mind. Hydrogen bubbles build up with every HydroCan and Hydrolyte.

  • Antioxidant
  • Recovery
  • Less fatigue
  • Mood
HydroApp body view: eight points from brain to hydrogen, each with a short note

05 · Your plan

Worked out, not guessed

Your weight, your strain and steps, your workouts, the heat where you are and how you slept become one plan: water, HydroCan and Hydrolyte, at the right time. Your day starts when you wake up.

  • Pulled from WHOOP and Apple Health, no typing
  • Every part shown, so you see why
How it’s worked out: everyday need, heat, training and catching up, adding to 3.6 litres

06 · Logging

One tap. Or just scan.

Point your camera at the code on any can or sachet and it is logged. Everything else is one tap, and saved to Apple Health as water.

  • HydroCan, Hydrolyte, water, coffee and more
  • Reorder from the app when you run low
Add a drink: scan a can or sachet, or tap the size you drank

07 · Club

One lake for all of you

Start a club with your run club, gym or friends. Everyone is a koi in a shared lake that fills with the whole team. Behind? A friend can splash you.

  • A team goal of five full days a week
  • Clubs see only your name, daily level, days on plan and splashes
A club’s shared lake, with a koi for each member

Start your lake today

Free on iPhone. Connect WHOOP or Apple Watch in a minute. Already have a HydroCan? Scan the code on the can.

Coming soon to the App StoreShop HydroCan
  • Your data is yours, never sold or used for ads
  • No tracking
  • Delete everything in one tap

Privacy · Help with the app

WHOOP is a trademark of WHOOP, Inc. Apple, Apple Watch and Apple Health are trademarks of Apple Inc. HydroApp is not made by or affiliated with either. Devices shown are illustrations.