What it does
- Live hydration level declines between drinks and forecasts when you'll get thirsty next.
- Caffeine metabolism shows how caffeine rises and fades, and calculates your last chance for coffee before bedtime.
- Alcohol tracking records intake and estimates blood alcohol content.
- Smart reminders prompt you to drink before you run low, and streaks and check-ins track daily habits.
- 29 collectible stickers are awarded for milestones.
- Health sync writes water and caffeine to Apple Health or Health Connect, and alcohol to Apple Health.
Good to know
- Requires iOS 16.2 or Android 8.0 and later.
- An Apple Watch app is planned.
Questions
- Does coffee count toward my daily water intake?
- Yes. Coffee is a mild diuretic, but a normal cup brings in more water than the extra urine it causes. Black coffee has a hydration factor of 1.00 in the app, so a 240 ml cup adds 240 ml to your goal. A latte counts 1.10, because your body keeps milk a little longer than plain water.
- Does tea dehydrate you?
- No. Black tea and green tea both have a hydration factor of 1.00, the same as water. A cup of tea also holds far less caffeine than a cup of coffee, so the fluid easily covers the small diuretic effect.
- How much water should I drink per day?
- It depends mostly on your body weight. WaterChamp starts at about 26 ml per kilogram, then adjusts for age, sex, activity level and climate.
- When should I stop drinking caffeine before bed?
- It depends on how fast you clear caffeine. The half-life is about 5 hours for most people. The app models that curve and shows your last chance for coffee each day.
In their words
Watch a live hydration level, catch your last chance for coffee, keep a streak, and collect stickers.
made fun.