Log any drink in seconds
59 built-in drinks, from espresso to boba, each with its own hydration, caffeine, alcohol and calorie numbers. Milk counts for more than water, wine counts for half, spirits count for nothing. Pick a drink, set the amount, done.
- Coffee and tea logged in shots and cups, not millilitres
- Daily goal from your weight, activity and climate
- Change any drink's numbers to match what you actually drink
Today's progress on your home and lock screen.
A daily total isn't enough. What counts is staying hydrated all day.
WaterChamp tracks a live hydration level that rises when you drink and gently falls through the day. Spreading water across the day helps your body absorb and hold onto it, instead of passing a big gulp straight through.
See how hydrated you are
WaterChamp shows how hydrated you are at any moment, on a simple scale from Thirsty to Waterlogged. It also works out when you'll get thirsty next, so it can remind you to drink just before you run low instead of after you already feel it.
- A live reading, plus a forecast for the rest of the day
- It tells you the time you'll get thirsty, and reminds you before then
- The reading drops slower while you sleep, faster when you exercise
Steady intake is easier for your body to absorb than one large amount at once. Hydration guidance recommends spreading fluids through the day.
Know your last chance for coffee
Caffeine has a long half-life, so an afternoon cup can still be in your system at bedtime. WaterChamp estimates how much caffeine is in your body and how it fades by bedtime, then finds the latest time you can have an espresso and still sleep. It warns you just before that cutoff.
- See your caffeine rise and fade up to bedtime
- A daily caffeine budget
- Works for espresso, tea, cola and energy drinks
In one study, 400 mg of caffeine taken even 6 hours before bed cut total sleep time by more than an hour. WaterChamp does that math for you. Drake et al., J. Clinical Sleep Medicine, 2013.
Streaks that reward steady sipping
Every day you hit your goal fills a drop in the calendar and grows your streak. Alongside the streak, a check-in counter tracks how spread out your drinking was: two drinks only count twice if they were at least half an hour apart.
- Current and best streak, with daily check-ins
- Day recaps and lifetime trends
Earn a sticker for every milestone
29 stickers to unlock, from First Drop to Gallon Club, Early Bird to Night Owl, Week Warrior to Ocean Explorer. How many can you collect?
+500 ml from a 500 kcal workout
Your goal adjusts to your day
On active days you need more water, so WaterChamp reads the calories you burn and adds a millilitre of water per calorie. It uses your sleep so your hydration drops more slowly overnight, and writes your water, caffeine and alcohol to Apple Health.
- Extra hydration on the days you move more
- Water, caffeine and alcohol written to Apple Health
- Reads sleep and workouts, nothing uploaded to us
Create your own drinks
Not seeing your go-to? Build a custom beverage with its own caffeine, calories, alcohol and hydration factor, plus custom art and colour. It counts toward your hydration, caffeine and alcohol tracking just like the built-in drinks.
- Full nutrition: caffeine, calories, ABV, hydration factor
- Pick the container and the colour of the drink
- Set the serving size you actually pour
New drink · Cold Brew XL
Apple Watch app
Log a glass and check your progress from your wrist. Planned after launch.
Coming soon
