The smart hydration tracker that works with any water bottle!

Sponge is a smart hydration tracker that automatically tracks your water intake and helps you build consistent hydration habits without manual logging.

Learn more about how much water you should drink.

Smart hydration · App-lock technology

Your Apps Unlock
When You Drink

Sponge clips onto any water bottle and automatically tracks every sip. Lock Instagram, TikTok, or whatever distracts you most - and it unlocks when you hit your goal. Sponge works as a water intake tracker by automatically measuring how much you drink throughout the day.

30-day guarantee. Due to the high order volume, please expect at least 8 weeks for orders to be delivered.

GIF of the Sponge Clip. The Sponge Clip attaches to any water bottle to automatically track hydration.
GIF of the Sponge Clip. The Sponge Clip attaches to any water bottle to automatically track hydration.

What is a hydration tracker/water intake tracker?

A hydration tracker is a device or app that monitors how much water you drink throughout the day. Many people underestimate their intake, which is why tracking can improve consistency and hydration habits.

Sponge is the best hydration tracker that automatically logs every sip from your bottle - without manual input, reminders, or extra effort.

Who should use a hydration tracker?

A hydration tracker is useful for anyone who wants to improve consistency, but it is especially valuable for athletes, busy professionals, and caregivers monitoring hydration levels.

Sponge is designed for people who want automatic water intake tracking without changing their routine or manually logging every drink. Learn more about how much water you should drink and how hydration impacts your body.

Any bottle

No replacement needed

8-day battery

Charge once a week

iOS + Android

Free app included

As simple as snap, sip, repeat

Three steps. No learning curve.

1

Clip it on

The magnetic base attaches to any water bottle in seconds. No complicted assembly required.

2

Drink normally

Every sip is recorded on the device. Everytime you open the app, data automatically syncs.

3

Hit your goal

The app tracks your intake in real time. Set an app-lock and let it do the work for you.

Watch the full setup

Get up and running in under 2 minutes.

Only on Sponge

The hydration hack your phone has been waiting for

Most trackers remind you to drink. Sponge makes it unavoidable and automatic. Lock your most-used apps and they stay blocked until you’ve hit your water goal for the day. No willpower needed.

  • You choose which apps get locked
  • Unlocks automatically when your goal is reached
  • Works on iOS, Android coming soon
Pre-Order now
Mobile app showing a hydration goal setting interface for Facebook, a 'Set the hydration goal required to unlock this app' prompt, and options to select a goal of 8, 16, or 24 ounces, with 'Cancel' and 'Save' buttons.
Apple logo with text 'Download on the App Store' in black and white. Link to Sponge Hydration App.
Apple logo with text 'Download on the App Store' in black and white. Link to Sponge Hydration App.
Google Play Store badge with the text 'Get it on Google Play' and the Google Play logo. Link to Sponge Hydration App.
Google Play Store badge with the text 'Get it on Google Play' and the Google Play logo. Link to Sponge Hydration App.

Everything you need. Nothing you don’t.

Works with any bottle

Magnetic clip fits any water bottle. Keep the one you already love — no upgrade required.

Automatic sip tracking

Records every sip on-device. No buttons, no manual logging, no thinking about it.

8-day battery life

Charge once a week via USB-C. Built for real life, not constant charging.

iOS and Android

Full-featured Sponge app on iOS and Android. The app is free.

★ ★ ★ ★ ★‍ ‍ 4.9 stars by 120 customers

What our customers are saying:

A young man in cycling gear holding a black insulated water bottle with his Sponge Device clipped to the bottom, standing indoors with a bike helmet hanging on a chair and a bicycle in the background. 
“I'm a tri-athlete and my hydration is valuable - that is why I track my hydration status with Sponge!”
Brian, Maryland
Close-up of a person's hand holding a white Hydro Flask water bottle with a Sponge Device snapped on the bottom. On the desk is a small potted succulent, a cup of coffee, and a note that says, "Breathe. Plan. Execute. (And get coffee)." 
“I used to think I was getting enough water until I actually recorded it with the Sponge hydration tracking device.”
Kelly, California
A smiling woman holding a large pink tumbler with a lid and straw which has its water intake tracked by the Sponge device, which is attached to the bottom. , standing inside a home with a ceiling fan and window in the background. 
“The Sponge automatic water tracker actually gets me to drink water.”
Isabella, Florida

Limited first batch

Ready to make hydration automatic?

Order today. 30-day guarantee.

Pre-Order Sponge — $59.99

Sponge is a smart automated hydration tracker that automatically records your water intake from any bottle. Unlike smart water bottles, Sponge clips onto what you already use and tracks every sip in real time - helping you stay hydrated, improve performance, and build better habits without manual logging.

What is the best hydration tracker?

The best hydration tracker is one you’ll actually use consistently. Sponge stands out by automatically tracking water intake from any bottle, removing the need for manual logging or reminders.

Newsletter and Product Updates

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