A water tracker with a face

Meet your hydration buddy.

Dewey is a small, friendly water tracker. Log a drink in one tap, watch your buddy fill up, and keep the streak going. That's it. That's the app.

16 drinks built in Streaks iOS & Android
Try it · tap a drink 🔥 6 day streak Nice sip
0oz

Tap a drink to start the day

Why Dewey exists
Drinking water shouldn't feel like homework.

No guilt. No graphs you'll never read. Just tap, sip, repeat.

How it works

Three seconds, start to sip.

01

Tap a drink

Water, coffee, matcha, wine. 16 drinks out of the box, each with its own hydration value, or make your own. Drag to adjust the size.

02

Watch your buddy fill

Every drink adds a colored band sized to its share of your day. The newest one carries the wave and tints your buddy's face.

03

Keep the streak

Hit your goal, grow the streak, and get a little confetti for your trouble. Gentle reminders nudge you before the day slips away.

A quick tour

From first sip to full streak.

Dewey home screen: the drop buddy filled with stacked bands of water, coffee, and green tea Dewey home screen in dark mode: the drop buddy filled with stacked bands of water, coffee, and green tea
Home · stacked drinks
Adjust screen: drag a glass of green tea to set the size Adjust screen in dark mode: drag a glass of green tea to set the size
Drag to adjust
Drink library with hydration percentages for each beverage Drink library in dark mode with hydration percentages for each beverage
The drink library
Insights: monthly chart and a calendar of colored dots Insights in dark mode: monthly chart and a calendar of colored dots
Insights
Buddy picker: drop, glass, bottle, heart, star, cactus, cloud, cat and more Buddy picker in dark mode: drop, glass, bottle, heart, star, cactus, cloud, cat and more
Pick your buddy
The details

Small app. Thoughtful edges.

A goal that fits you

Worked out from your body stats and activity, not a generic 8 glasses.

Reminders with manners

Smart nudges that pace themselves through the day and stay quiet at night.

Insights, not homework

Days, weeks, months, and a calendar of dots colored by what you drank most.

Ten buddies

Drop, glass, bottle, heart, star, cactus, cloud, cat. And two more you'll find on your own.

After sunset

Easy on the eyes, late in the day.

Dewey follows your system theme. Same buddy, same one-tap logging, none of the glare.

The last glass of water before bed still counts.

Dewey home screen in dark mode