Privacy

In short

• We collect only what the website and HydroApp need to work.
• We never sell your data. HydroApp shows no ads and does not track you across other apps.
• Health data from Apple Health or Whoop is used only to work out your hydration. It is never used for advertising.
• You can see, export or delete your data at any time. In HydroApp: Settings, then Delete account.

This policy covers the HydroCan website (hydrocanwater.com) and the HydroApp iPhone app. “We” means HydroCan, run by Hydro Nation Trading Co LLC, Trade License number 1419042, Floor 25, Ifza Tower, Silicon Oasis, Dubai, UAE. Questions: support@hydrocanwater.com.

HydroApp: what it uses

Your account

You sign in with Apple or with an email and password. We keep your email address (Apple may give us a private relay address instead) and a random account number. The same account is used for orders in the HydroApp Shop, and to subscribe on the website. The website has no accounts of its own.

About you

What you enter during set-up: sex, weight, how much time you spend outside, and when you usually wake and sleep. It is used to work out how much you need to drink.

Apple Health (optional)

If you allow it, HydroApp reads workouts, active energy, steps, body weight, sleep, resting heart rate, heart rate variability, breathing rate, blood oxygen, cycle data and water you log in other apps. It writes only one thing back: the drinks you log, as water. Each type can be turned off in the Health app.

Whoop (optional)

If you connect Whoop, HydroApp reads your strain, workouts, sleep and recovery. The sign-in tokens are kept in your iPhone’s keychain. To sign in, the app asks our server to swap a one-time code with Whoop, so our app key stays secret. The server does not keep your tokens.

Your calendar (optional)

If you connect your calendar, HydroApp reads the titles and times of the next day and a half of events to plan drinks around them. The titles stay on your phone. When you use Ask, only the type of each event (flight, sport or long event), its start time and its length are sent.

Location

Your approximate location (not precise) is used to get the weather and, for Ramadan mode, local dawn and sunset times. If you say no, HydroApp uses Dubai.

Camera

Used only to scan the code on a can or sachet. No photos are taken or kept.

Notifications

Reminders are made on your phone. You can turn them off in Settings.

HydroApp: what is stored, and where

Everything above is kept on your iPhone. When you are signed in, a private backup of the app’s data is saved to your account, so you can get it back on a new phone. The backup holds your profile, the drinks you log, your daily levels, workout, sleep and recovery summaries, wake times and settings. Calendar events are never backed up. Only you can read it.

Backups are stored with Supabase, our database provider. Data is encrypted in transit (HTTPS) and at rest. Deleting your account deletes the backup.

You can use HydroApp without an account. In that case nothing is backed up and your data stays on your iPhone.

To see how the app is used, HydroApp also sends a few anonymous counts to our own database: that the app was opened that day, and when a drink is logged, someone signs in, joins a club, uses Ask or starts an order. Each count carries only a random number made on your phone, the date, the app version and whether you are signed in. It never includes your name, email, health data, amounts or anything you type, and it is not linked to your account or used for advertising.

HydroApp: Ask

Ask answers questions about your hydration. When you send a question, HydroApp sends it with a short summary of your day to our server, which gets the answer from Claude, an AI model made by Anthropic. The summary holds: the time, your sex, weight, whether you are mostly indoors or outside, wake and sleep times, today’s target, drinks, training and sweat estimate, the weather, any special day you switched on, the type and time of upcoming calendar events (never their titles), and your levels for the last seven days. It does not include your name, email, location or account number.

HydroApp asks for your permission before your first question. We do not store your questions or the answers. Anthropic processes them only to answer, does not use them to train its models, and deletes them under its own retention rules. You never have to use Ask.

HydroApp: Clubs

If you start or join a club, the club sees the name you choose for it and, once a day, your level and whether you were on plan. Never your drinks, health data or account. Our server keeps a random key for you instead of your account number, plus any splashes (friendly nudges) between members. Leave a club and your entry is removed, but hides and reports about you stay.

You can report a member’s name or a club name, or hide a member from your own view. A report records the club, the name as it was then, and the random keys of the person reporting and of the member reported (if it is about a member). We review it within 24 hours. A member you hide is not told, and stays hidden if they leave and join again.

Orders

When you order in HydroApp or on the website, we collect your name, email, phone number and delivery address to deliver it, and keep a record of your orders and subscriptions. The app and the website use the same shop, stored with Supabase, our database provider. Payment and subscriptions are handled by Stripe, by card, Apple Pay or Google Pay. Your card details go straight to Stripe; we never see your card number.

Cookies on the website

The website uses Google Tag Manager and the Meta Pixel to measure visits, what is viewed and bought, and how our ads perform, but only if you choose Accept in the cookie banner. They use cookies and similar tools. If you choose Reject, or make no choice, they are not loaded and nothing is sent to Google or Meta. You can change your choice at any time with Cookie settings at the bottom of every page. The app does not use them.

A few things are kept in your browser because the shop needs them, and they are never used for measurement: your basket and your cookie choice, and during checkout your delivery details, payment step and shop sign-in, which are kept only until you close the tab. On the checkout page, Stripe uses its own cookies to take the payment safely and prevent fraud.

Who we share data with

We share data only with the services that run HydroCan for us, and only what each needs:

We do not sell personal data. Health data is never shared with advertisers or data brokers.

Your choices and rights

• Delete everything: in HydroApp, open Settings and tap Delete account. This removes your account, your backup and the data on your phone straight away.
• Turn things off: Apple Health, location, camera and notifications can each be turned off in iPhone Settings. The app still works.
• Ask us: to see, correct, export or delete your data, email support@hydrocanwater.com. We reply within 30 days.

We keep order records for as long as UAE law requires. Everything else is kept only while your account is open.

Children

HydroApp is not meant for children under 13, and we do not knowingly collect their data.

Changes and contact

If this policy changes in a way that matters, we will say so in the app or on this page before it takes effect. Questions or requests: support@hydrocanwater.com or the contact page.