A goal that adapts to you
WaterTotter calculates your daily target from your age, height, weight, activity and climate — warmer days and busier days mean a bigger glass. Or set your own goal by hand.
4.9 on the App Store
Keep your water balance on track.
A tiny, private water tracker with gentle reminders. No ads, no account, no data collected — just you, your glass and a goal that fits your day.
0
bytes of your data collected
0
ads, banners or pop-ups
4.9★
average App Store rating
24
languages, from Arabic to Ukrainian
Features
Small app. Smart about water.
Every day, remembered
Daily and weekly history with a calendar that shows how close you got to your goal each day.
Apple Watch
Log a glass from your wrist and keep progress in sight with complications.
Apple Health
Your water intake can flow into Apple Health — only if you allow it.
Widgets
See how full today's glass is right on your Home Screen.
Reminders
Flexible intervals, your own start and end times and a sound you actually like.
Your colors
Customize colors for light and dark themes and pick your own background.
ML or OZ
Metric or imperial, milliliters or ounces — whatever you think in.
Screens
Clear as water.
Free forever
No subscriptions.
No ads. Just coffee.
Every feature in WaterTotter is free. If it helps you drink more water, you can leave an optional tip in the app — it keeps an indie developer hydrated with coffee.
- A coffee
- Two coffees
- A large latte
- A meal
What's new
Always flowing.
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1.3.1
Design update, new drinks and a flexible button to log themOctober 2026
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1.3.0
More precise rounding for ouncesSeptember 2026
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1.2.9
More languagesSeptember 2026
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1.2.8
Widgets, an Apple Watch app and custom backgroundsAugust 2026
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Earlier
Apple Health, custom notification sounds and ounces2025 – 2026
Support
Need a hand?
Is WaterTotter really free?
Yes. There are no subscriptions, no paywalls and no ads. The only in-app purchases are optional tips that unlock nothing — they simply support development.
What data do you collect?
None. Your logs and settings stay on your device, and water intake is only shared with Apple Health if you turn that on. Read the full Privacy Policy.
How is my daily goal calculated?
With Auto Calculate on, WaterTotter uses your age, height, weight, sex, activity level and climate. Prefer your own number? Turn Auto Calculate off and set the goal with the − / + buttons.
Does it work on Apple Watch?
Yes — there's a Watch app with complications (watchOS 10.6 or later). WaterTotter also runs on Macs with Apple silicon.
My reminders don't arrive. What should I check?
Make sure notifications are allowed for WaterTotter in iOS Settings, check that a Focus mode isn't silencing them, and confirm the reminder interval and start / end times in the app.
How do I report a bug or suggest a feature?
Send an email with your device model, iOS version and what happened. A screenshot helps a lot. Every message gets read.