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
No guilt, no spreadsheets. Just gentle nudges and a lot of little wins.
Cup, mug or bottle — tap once and it's in. Logging takes two seconds, so you'll actually keep it up.
Hit your goal and Lou bursts into confetti. Miss it? No lecture — just a fresh start tomorrow.
Gentle nudges when you've gone quiet. Encouraging, never nagging — and you pick the schedule.
Answer a few questions and Wotter sets a daily target that makes sense for your body — not a random number.
Every day you hit your goal keeps the streak alive. Small wins, stacked into a habit that sticks.
Everything sits in the water. Here's what your days look like.
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.