Build a hydration habit that actually sticks.
Track your daily water intake in a single tap. Designed exclusively for iOS with zero account setup, total device privacy, and gentle smart reminders.
- 100% On-Device Privacy
- One-Tap Quick Logging
- Lock Screen Widgets
Today
Hydration simplified into three daily moments
Designed to fade into the background so you stay naturally hydrated without distraction.
Log in one tap
Log water instantly from your Home Screen, Lock Screen, or inside the app with preset glasses (250 mL, 500 mL, 1 L) or custom sizes.
Get nudged gently
Intelligent local notifications adjust to your wake and sleep schedule. No annoying spam. Just timely reminders when you need them.
Watch the streak grow
Track daily momentum with hydration scores, monthly calendar progress, and streak multipliers that turn hydration into a rewarding habit.
Everything you need, beautifully arranged
Clear statistics, native widgets, and goal insights designed to give you clarity at a glance.
Visual Calendar History
Review your monthly consistency with filled calendar indicators, best intake days, and goal completion rates.
Smart Daily Score
Evaluates your intake pace, timing throughout the day, and daily target achievement on a scale of 0-100.
Streak & Stats
Build momentum with streak counters and personal best records.
Home & Lock Screen Widgets
Log water directly from your Lock Screen or check your remaining goal without unlocking your phone.
Your health data stays 100% on your device.
No cloud servers, no forced accounts, no third-party tracking. Waterly is built with privacy as the core architecture.
- No Account Needed. Instant start, zero signup forms.
- Zero Cloud Uploads. All entries stay on your iPhone.
- Zero Ad Tracking. Absolutely no ad frameworks.
- Apple HealthKit Sync. Seamless local health integration.
"Finally a water tracker that isn't trying to sell my personal data or lock basic features behind an account signup. Super clean, fast, and the widget is gorgeous."
Start your hydration habit today
Download Waterly for iOS. Free forever with zero accounts and total privacy.