🐠 iOS App · Free

Stay Hydrated,
Stay Happy

Your daily hydration companion — with Finn the clownfish cheering you on.

Free to Download
4 Screens
0 Accounts needed

How Hydra Works

Three taps is all it takes to build a healthy hydration habit.

Set Your Goal

Choose your daily water target in oz or ml. Hydra defaults to 128 oz — a solid foundation for most people.

Log a Drink

Tap "+ Add Water," pick your amount with the slider or quick-pick pills, and confirm. One more tap and you're done.

Watch Finn Smile

The screen fills with water and Finn grows happier as you hit your goal. Build streaks and keep him ecstatic!

Built for Your Daily Routine

No accounts. No cloud. No friction. Just open, tap, and hydrate.

Animated Water Fill

Watch your screen fill with real-time animated water as you log drinks. At 100% it's a beautiful ocean blue — pure satisfaction.

Streak Tracking

Hit your goal every day and build an unstoppable streak. The flame badge keeps you coming back and building momentum.

Weekly Stats

A colour-coded bar chart shows your entire week at a glance — green for goal days, with your average, best day, and streak all visible in one tap.

Quick Logging

Slider, quick-pick pills (8 / 12 / 16 / 24 / 32 oz), or one-tap repeat from your recent entries. Logging a drink takes under three seconds.

Smart Reminders

Set reminders every 30 min to 4 hours, with configurable quiet hours so you're never pinged at 3 AM. Totally optional and easy to adjust.

100% Private

All data lives on your device. No account sign-up, no cloud syncing, no data collection. Your hydration history is yours, period.

Meet Finn

Finn the clownfish lives on your home screen and reacts to how well you're hydrating. Keep him happy — he's counting on you.

0 – 33%
😟 Dehydrated

Finn looks sad — he needs more water. Log a drink and cheer him up!

34 – 66%
😐 Neutral

Getting there! Finn is watching your progress. A few more glasses and he'll brighten up.

67 – 100%
😄 Ecstatic!

Finn is thrilled! Big smile, rosy cheeks — you're crushing your hydration goal.

Finn comes alive with animations

🌊
Idle float Gentle ±6px vertical bob every 3 seconds
💥
Entry bounce Scale pop (400ms spring) on every logged drink
🎭
Mood crossfade 600ms smooth expression change at each threshold

Ready to Start Hydrating?

Download Hydra for free on the App Store. No sign-up, no subscription — just better hydration, starting today.

iOS · Free · Requires iOS 16 or later  ·  Hydra v1.0.0

From the GillSip Blog

Hydration science, healthy habits, and the latest Hydra news.