The best scientific hydration app just got better.

Our critics call this the " hydration app in the App Store..."

And our medical doctors say "...I recommend this app to all of my patients...".

Now featuring stunning animations and a beautiful new Apple Watch app. Aqueous is the only medically researched, water tracker In the App Store. The app uses appropriate reminders, which you control, to suggest the correct amount of water you should drink every day to help you stay hydrated. You can even personalize how the app looks and sounds! Best of all, we help charities who provide clean & safe drinking water to children around the world.

Sadly, more than 4,100 children die everyday from drinking dirty water, and so when you use Aqueous every day, you'll not only stay hydrated, healthy and lose weight but you'll be saving lives too.

By taking a step to improve your health, you can help us make the world a more beautiful place!

Aqueous saves your hydration levels in to the Health app, using HealthKit.

What's New

Version 3.4.144

• New Heart profile images for Valentine's Day.
• New Romantic notification sounds.
• New recommended apps from us.
• Improved connectivity with Apple Watch.

Got an Apple Watch?
Improve your health with our new app and see if you can find the Hidden Duck™.

If you haven't done so in a while, open Settings, in Aqueous, and then open the Hydration Calculator to update your target water consumption levels.

• New Halloween profile images.
• New Halloween notification sounds.
• New recommended apps from us.
• Faster connectivity with Apple Watch.
• Support for iOS 11.
• Support for iPhone 8 and iPhone 8 Plus.

To make Aqueous better for you, we'll bring updates to the App Store every few weeks. You can update the Aqueous app automatically (without checking back here) by going to your iPhone's Settings App > App and iTunes Store > Automatic Downloads and turning on Updates.

Every update of our app includes improvements for speed and reliability.

Customer Reviews

4.4 out of 5

13 Ratings

13 Ratings

Best Watch App in the App Store


This water hydration app works great! Apple Watch and iPhone stay in sync, and display the amount consumed reliably. The App also stores data in HealthKit so other Apps can read these values. In addition if you have HealthKit setup, it will read your sex and weight and use these values when it calculates the amount of water you should consume. This app is also very reliable, and I've never seen it crash.

Great app!!!


I am not much of a water drinker but this app keeps me right on track now I make sure that I get in my 88 ounces a day.

I am feeling so much better and have so much more energy. I love the reminders that are sent to your cell phone to drink water throughout the day I went out to Trader Joe's and bought two cases of water this morning

It would be 5 stars, but...

Associate addict

This app would be great if it worked correctly. The app will not reset for each day, and I could find no way to reset it myself. Also, it does not sync correctly with my watch. It should show the same amount that I drank on the watch as on my phone, but it does not. I haven't found any other water tracker that I like, but am too frustrated to use this.


Ash Alom
43.2 MB
Health & Fitness
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Arabic, Dutch, French, German, Hindi, Italian, Japanese, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2017 Dr Ash Alom
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  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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