Wata: Water Tracker & Reminder

Tap your bottle. Drink logged.

Free · In‑App Purchases

Put an NFC sticker on your bottle and hold your iPhone to it: the drink is logged. Wata reminds you by how far behind you are, not the clock. Pay once, no subscription. Wata is a glass of water that lives on your phone. Every drink you log pours in, and Wata, a small drop made of water, floats on top: cheerful when you're on track, drying out when you forget. TAP, AND IT'S LOGGED Stick an NFC sticker on your bottle and pair it once. From then on a tap with your iPhone logs the whole bottle, without hunting for the app. Any NTAG213 sticker works, a few for the price of a coffee. No sticker? One tap on the screen logs a glass just as fast. REMINDERS THAT WATCH YOUR PROGRESS, NOT THE CLOCK Wata plans the rest of your day from what's left: never within 45 minutes of a drink, quiet once you're done, silent in the 90 minutes before bed, and paused during meetings if you let it see your calendar. Each reminder asks for one small glass, never a whole bottle. Choose Wata's voice: calm, or a little cheeky. SMART ABSORPTION Chug a whole bottle to catch up, and much of it heads straight for the bathroom. Wata notices when you drink a lot at once, raises today's goal a little and tells you why, then asks for a small glass later, when more of it stays. Health still gets every drop you drank. A GOAL WITH SOURCES Your daily goal comes from your weight and workouts in Health, following the guidance of Taiwan's Health Promotion Administration, EFSA and ACSM. Hot days add water, and after a workout Wata tells you roughly how much you sweated out and spreads the top-up over the next two hours. EVERYTHING COUNTS ONCE Every drink is saved to Health as water, and water logged in other apps is counted once, not twice. Apple Watch, Home Screen and Lock Screen widgets, Control Center, Siri and Shortcuts all log into the same glass. WATA FULL, ONCE Wata is free, with at most one ad a day and none in your first week. One purchase removes the ads for good and opens unlimited stickers, month and year trends with a year in review, every drink and cup, and workout reminders. Family Sharing included. No subscription. PRIVACY Your drinks live in Health, on your devices and in your iCloud. Wata has no servers and no analytics, and nothing about your health ever reaches the ad network. Wata's goal and suggestions are general guidance for healthy adults, not medical advice.

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The developer, Ching Ting TSAI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Ching Ting TSAI
Size
13.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • Apple Watch
    Requires watchOS 11.0 or later.
Languages
English and 4 more
  • English, Japanese, Korean, Spanish, Traditional Chinese
Age Rating
9+
  • 9+
  • Learn More
  • Contains
    Advertising
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
© 2026 tasict
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More