Rill: Water Tracker

Fill your glass.
Keep your streak.

A calm, minimalist water tracker for iPhone. Log a drink with one tap or a tactile slider and watch your glass fill up. Free, with no ads, no accounts and no tracking.

Coming soon on iPhone Free · No ads

Rill Today screen: a glass filled to 65 percent, 1,300 of 2,000 ml, a 12-day streak, quick-add buttons and the custom amount slider

See it in action.

Real screens from the app, not mockups.

Tactile slider. Satisfying haptics.

Tap 150, 250, 330 or 500 ml, or drag the slider to any amount. It clicks with a gentle haptic on every step, and Undo is always one tap away.

Rill custom amount slider mid-drag at 450 ml, above today’s list of drinks

One tap. Goal reached.

Hit your goal and the glass tops off, drops burst out and your streak ticks up, with a satisfying haptic to match.

Rill Today screen at 100 percent with a goal-reached celebration and a 13-day streak

Keep your streak going

A monthly calendar with a progress ring for every day. See your current streak, best streak, goals met this month and your daily average.

Rill History screen: September calendar with goal days in green, a 12-day current streak and 20 goals this month

Widgets on Home & Lock Screen

See today’s progress and streak at a glance, and log a glass right from the Home Screen widget without opening the app.

Private by design. Health optional.

No account, no cloud, no ads. Turn on Apple Health sync if you want your water in Health, and set one gentle daily reminder.

Rill Settings screen with the Sync with Apple Health switch, a daily reminder at 3 PM and the Your data card

Only what you need.

Rill keeps the part of hydration tracking that works (a goal, a glass that fills up, a streak to protect) and leaves out everything else.

Daily goal

Set a goal on first launch (2,000 ml by default) and watch an animated glass fill toward it through the day.

Tactile slider

Tap a quick-add size or drag the slider, which clicks with a gentle haptic at every step. Undo in one tap.

Calendar & streaks

A monthly calendar shows a progress ring for every day, plus your current streak, best streak and goals met.

Home & Lock Screen widgets

See today’s progress and streak at a glance, and log a glass right from the Home Screen without opening the app.

Apple Health sync

If you allow it, Rill saves the water you log to Apple Health. It’s optional, and you can turn it off at any time.

100% private & offline

No sign-up, no cloud, no analytics. Everything you log stays on your iPhone.

Free. Really.

No ads, no subscriptions and no in-app purchases. Every feature is included for everyone.

ml or oz, light or dark

Switch units any time. Rill follows your iPhone’s light or dark appearance.

Data not collected.

Rill has no accounts, no servers and no trackers. Your drinks, goal and streaks never leave your device, except for what you choose to save to Apple Health.

Read the privacy policy →

Fill your glass.Keep your streak.