# Aqueous - Stay Hydrated — The Scientific Hydration App > Scientific hydration tracker with personalized reminders and charitable contributions. (iPhone/iPad app by Ash Alom.) - Source: https://appshunter.io/ios/app/aqueous-stay-hydrated/id991272898 (this page in markdown: same URL + `.md`) - Developer: [Ash Alom](https://appshunter.io/developer/991272897) - Category: Health & Fitness, Food & Drink - Price: Free with in-app purchases - Rating: 3.92/5 from 39 App Store ratings · 52 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 42 MB - Languages: Arabic, Dutch, English, French, German, Hindi, Italian, Japanese, Chinese, Spanish - Released: 2015-08-20 - Data updated: 2026-07-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/aqueous-stay-hydrated/id991272898/reviews.md ## What is Aqueous? The best scientific hydration app just got better. Our critics call this the "...best 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. ## Key features - Scientific hydration tracking - Personalized reminders - Apple Watch app - Health app integration - Charitable contributions - Customizable appearance ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Upgrade to Remove Ads | $0.99 | one-time | ## Recent user reviews (10 of 52) All indexed reviews: https://appshunter.io/ios/app/aqueous-stay-hydrated/id991272898/reviews.md ### 5/5 — Aqueous app *2023-01-28, version 3.4.144* Nothing really to say other than, it’s easy to use and does the job, I would recommend. ### 5/5 — Great app, great service *2020-04-02, version 3.4.144* This is a great App for quickly updating the drinks you have and keeping on track. I’ve had much more energy and less headaches since monitoring my intake. I like that you can adjust your goal based on exercise level. Also, when I asked a question I got a fast and positive response from the developer- great service. I’ve upgraded to get the full features. ### 2/5 — Useful because simple, but very buggy *2019-12-14, version 3.4.144* When it works, it does its simple job. But to start every day, on the phone it has to be opened and wiped from memory and reopened in order to begin with 0 oz. Sometimes even that does not work. Most of the time, watch and phone app sync, but not always. ### 5/5 — Worth every penny *2019-07-15, version 3.4.144* 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. ### 2/5 — Can’t depend on it *2019-06-04, version 3.4.144* It has not been switching to 0 next day. I had to manually delete water cause it did not start over. Otherwise it is cute especially on watch. Update... still so unreliable.., I am going to delete it. ### 5/5 — Best App!! *2019-04-27, version 3.4.144* This app is great. Gives a nice gentle reminder every time to drink water. It works really amazing on the Apple Watch as well. Very reliable app too. I have never seen it crashing. Overall amazing and I would recommend this app!! ### 2/5 — Does not sync with Apple Watch *2019-01-05, version 3.4.144* I like that this app reminds me to stay hydrated, however there are sync issues with my Apple Watch. If I update my water intake on my watch, it does not update on the mobile app and visa-versa. This is annoying and causes inaccuracies. I hope the developer fixes this bug! ### 5/5 — Great app *2018-12-19, version 3.4.144* This app works great to keep track of water intake, as well as when to hydrate... cuz honestly don’t we all need a reminder sometimes... ### 4/5 — Like this app *2018-12-13, version 3.4.144* 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. ### 3/5 — Cute but won’t sync *2018-09-05, version 3.4.144* Love the extra touches to motivate you to drink more water- going to try opening app on phone and watch at the same time to see if it will sync. Right now my watch and app are both showing yesterday’s (+ the day before that) info and can’t start a new day. 😕 ## Frequently asked questions about Aqueous ### What does Aqueous do? Aqueous is a scientifically researched hydration app that helps you stay hydrated by providing personalized water intake reminders. It tracks your hydration levels and integrates with the Health app. The app also contributes to charities that provide clean drinking water to children worldwide. ### What are the key features of Aqueous? Key features include scientific hydration tracking, customizable reminders for drinking water, a dedicated Apple Watch app, integration with Apple's Health app via HealthKit, and the ability to personalize the app's look and sound. A portion of the proceeds also supports charities. ### Is Aqueous free to use? The application is free to download and use. However, it does offer in-app purchases, which may unlock additional features or customization options for users who wish to enhance their experience. ### What devices is Aqueous compatible with? The app is designed for mobile devices and also features a dedicated application for the Apple Watch. It integrates with the Health app, suggesting compatibility with devices that sync with Apple Health. ### How does Aqueous help with hydration? It provides medically researched guidance on your daily water intake needs. You can set personalized reminders that you control, ensuring you drink the correct amount of water throughout the day to stay hydrated, healthy, and potentially aid in weight loss. ## Version history (last 5 releases) ### 3.4.144 — 2018-02-05 This app has been updated by Apple to display the Apple Watch app icon. NEW IN 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™. TOP TIP: 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 IN VERSION 3.3.140: • 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. ### 3.3.140 — 2017-10-05 NEW IN VERSION 3.3.140: • 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. Got an Apple Watch? Improve your health with our new app and see if you can find the Hidden Duck™. TOP TIP: 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 IN VERSION 3.1.132 & 3.2.133: • Awesome new look! • Missed a day? Log hydration levels of past days. • Faster access with the Apple Watch. • Make quick logs using a long-press on app icon. • Make even faster logs from the Notifications. • Reseting Notification Badges at midnight. • Fun new profile images. • Even more notification sounds. • Animating water levels. • Improved connectivity with Apple Watch. • Improved support for iOS 10.3.3. • Improved support for HealthKit integration. 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. ### 3.2.133 — 2017-08-09 NEW IN VERSION 3.1.132 & 3.2.133: • Awesome new look! • Missed a day? Log hydration levels of past days. • Faster access with the Apple Watch. • Make quick logs using a long-press on app icon. • Make even faster logs from the Notifications. • Reseting Notification Badges at midnight. • Fun new profile images. • Even more notification sounds. • Animating water levels. • Improved connectivity with Apple Watch. • Improved support for iOS 10.3.3. • Improved support for HealthKit integration. Got an Apple Watch? Improve your health with our new app and see if you can find the Hidden Duck™. TOP TIP: 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 IN VERSION 2.0.100: • Improved support for iOS 10.1. • New Christmas themed silhouettes. • New Christmas notification sounds. 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. ### 3.1.132 — 2017-08-07 ALL NEW IN VERSION 3.0.130 & 3.1.132: • Awesome new look! • Missed a day? Log hydration levels of past days. • Faster access with the Apple Watch. • Make quick logs using a long-press on app icon. • Make even faster logs from the Notifications. • Reseting Notification Badges at midnight. • Fun new profile images. • Even more notification sounds. • Animating water levels. • Improved connectivity with Apple Watch. • Improved support for iOS 10.3.3. Got an Apple Watch? Improve your health with our new app and see if you can find the Hidden Duck™. TOP TIP: 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 IN VERSION 2.0.100: • Improved support for iOS 10.1. • New Christmas themed silhouettes. • New Christmas notification sounds. 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. ### 3.0.130 — 2017-08-04 ALL NEW IN VERSION 3.0.130: • Awesome new look! • Missed a day? Log hydration levels of past days. • Faster access with the Apple Watch. • Make quick logs using a long-press on app icon. • Make even faster logs from the Notifications. • Reseting Notification Badges at midnight. • New profile images. • Even more notification sounds. • Animating water levels. • Improved support for iOS 10.3.3. Got an Apple Watch? Improve your health with our new app and see if you can find the Hidden Duck™. TOP TIP: 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 IN VERSION 2.0.100: • Improved support for iOS 10.1. • New Christmas themed silhouettes. • New Christmas notification sounds. 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. ## Apps similar to Aqueous | App | Rating | Price | Category | | --- | --- | --- | --- | | [Daily Water - Drink Reminder](https://appshunter.io/ios/app/daily-water-drink-reminder/id466387763) | 4.3 (1,129) | Free | Health & Fitness | | [Water Log & Drink Reminder](https://appshunter.io/ios/app/water-log-and-drink-reminder/id1114617196) | 4.8 (2,301) | Free | Health & Fitness | | [waterdrop® Hydration App](https://appshunter.io/ios/app/waterdrop-hydration-app/id1535002336) | 4.8 (719) | Free | Health & Fitness | | [Water Reminder & Tracker.](https://appshunter.io/ios/app/water-reminder-and-tracker/id1474387748) | 4.6 (825) | Free | Health & Fitness | | [Fitny - Stretching & Fitness](https://appshunter.io/ios/app/fitny-stretching-and-fitness/id6474268576) | 4.7 (2,270) | Free | Health & Fitness | | [Drink Water Aquarium](https://appshunter.io/ios/app/drink-water-aquarium/id1315396498) | 4.7 (3,531) | Free | Health & Fitness | ## More apps by Ash Alom - [Balloons 1](https://appshunter.io/ios/app/balloons-1/id1165927522) All apps by Ash Alom: https://appshunter.io/developer/991272897 ## Related topics [stay hydrated pro](https://appshunter.io/ios/topics/stay-hydrated-pro) · [stay hydrated](https://appshunter.io/ios/topics/stay-hydrated) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*