The water tracker you'll actually open.

Log a glass in one tap, keep a streak you're proud of, and let Lou the otter cheer you on. No guilt, no spreadsheets.

Free trial · then a simple subscription · cancel anytime

Lou the otter peeking over the phone, looking down at the screen
Why Wotter

A water tracker that feels like a friend.

No guilt, no spreadsheets. Just gentle nudges and a lot of little wins.

Log a glass in one tap

Cup, mug or bottle — tap once and it's in. Logging takes two seconds, so you'll actually keep it up.

Lou sipping water
Lou celebrating in a party hat

Celebrate every win

Hit your goal and Lou bursts into confetti. Miss it? No lecture — just a fresh start tomorrow.

Lou holding a megaphone

Kind reminders

Gentle nudges when you've gone quiet. Encouraging, never nagging — and you pick the schedule.

Lou in a lab coat measuring water

A goal that fits you

Answer a few questions and Wotter sets a daily target that makes sense for your body — not a random number.

Lou lifting weights

Build gentle streaks

Every day you hit your goal keeps the streak alive. Small wins, stacked into a habit that sticks.

A peek inside

See Wotter in action.

Everything sits in the water. Here's what your days look like.

Home
Today's total, filling up
Streak
Your habit, day by day
History
A calm look back
Goal
A target that fits you
Good to know

Questions, answered.

Still stuck? Email us at hello@wotter.app

You start with a free trial so you can meet Lou and build your first streak. After it ends, Wotter is a paid subscription — no ads, and we never sell your data.

Wotter is $29.99 / year or $6.99 / month. You can cancel any time, straight from the App Store.

No. Wotter runs on your iPhone alone — nothing else to buy or set up. Open the app, tap, done.

Never. Reminders are gentle and fully adjustable — set your own schedule, or switch them off completely. Lou encourages, it doesn't guilt-trip.

Your hydration data stays yours. See exactly how it's handled in our privacy policy.

Wotter is an iOS app and runs on iPhone with iOS 16 or later.