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.

Ratings and Reviews

3.8 out of 5
35 Ratings

35 Ratings

Hubahuba1234 ,

Like this app

Like this app except for two things that maybe I don’t understand. 1. Separate or ability to choose water, tea, soda, etc. 2. Ability to only do a time line of 24 hours, so amounts don’t conflict from day to day. Thanks.

BeccaWeinstein ,

Worth every penny

I like how simple and elegant this app is to use. I’ve used others where they ask way too many questions before you can enter what you’ve drunk. For example why do other apps need to know how much tea or juice I’ve drunk? The amount of water in tea or juice is almost 100% if not 99% so it’s a superfluous question. This app doesn’t waste time with unnecessary things and makes the experience super easy and fun to use.

I had purchased the internal upgrade to unlock the water images and the full notification sounds. These are fantastic upgrades.

frost1000 ,

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.

App Privacy

The developer, Ash Alom, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Ash Alom
43.2 MB

Requires iOS 9.0 and watchOS 2.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Dutch, French, German, Hindi, Italian, Japanese, Simplified Chinese, Spanish

Age Rating
In-App Purchases
  1. Upgrade to Remove Ads $0.99


  • Family Sharing

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

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