SpongeWe think hydration should be effortless
Sponge started with a simple frustration: every hydration product asked us to do more - log water by hand, buy a new bottle, remember to drink. We wanted the opposite. A tracker that disappears into your day and just works.
Our mission
Most people know they should drink more water and don’t, and every fix on the market still relies on willpower to close that gap. We set out to build a hydration tracker that removes the friction entirely: no logging, no new bottle, no nagging you can tune out — and, when you want it, a consequence you can’t argue with.
Built around the bottle you already love
Instead of locking the sensor inside a single bottle, we put it in a tiny clip that works with the bottle you already carry. That one decision makes Sponge flexible enough to fit any routine, at your desk, in the gym bag, or in a parent’s kitchen.
Behavior, not just data
Tracking is only useful if it changes what you do. That’s why the Sponge app pairs gentle, real-time nudges with an optional app-lock that turns your phone into a reason to drink. The result is a habit that actually sticks.
