Free hydration tracking · optional one-time extras
Thirsty Day
Water for the whole house.
Make water logging a small, shared daily habit. Keep separate household profiles, log a glass with one tap, and cheer each other on with animal companions, streaks, and squad races. Core hydration tracking is free. No separate app account, ads, or subscription.
Start logging for free. Thirsty Pro and Mythic Creatures are separate optional purchases.
- · Core tracking stays free
- · No ads
- · iCloud Squad Sync is optional

App Store screenshots
See it before you download.

See your daily progress
A quick water log and a companion to cheer you on.

Find your spirit sipper
Start free, earn select classics, or choose optional Pro.

Cheer your squad
Share invites and compare progress; remote sync is opt-in.

A profile for each person
Separate avatars, goals, logs, and friend codes.
- 1
Set up profiles
Keep separate goals and daily totals for the people in your household.
- 2
Log water
One tap, with optional reminders and widgets when they help.
- 3
Build a squad
Share an invite link or QR code, compare daily progress, and opt into iCloud Squad Sync for live friends and nudges.
- 4
Choose your companion
Keep the free starting animal, earn select classics through streaks, or unlock every classic with Pro. Mythic Creatures is a separate cosmetic collection.
Free
Start here.
- · Profiles, goals, reminders, and widgets
- · All core water logging, streaks, and rewards
- · Squad invites, share cards, and optional iCloud Squad Sync
Optional Thirsty Pro
$4.99 once in the U.S.
- · Every classic animal in one unlock
- · Choose classics without waiting for streak unlocks
- · One-time purchase; not a subscription
Optional Mythic Creatures
$4.99 once in the U.S.
- · Six original cosmetic companions
- · Separate from Thirsty Pro
- · Not needed for core water tracking
These are two separate purchases, not a bundle. Buy only the extras you want; the App Store shows your local price.

Before you download
Start with the everyday task you want to make easier. The feature lists above separate what is included from optional paid extras, so you can decide whether Thirsty Day fits your routine before opening the store. Preview images illustrate the experience; the App Store listing is the place to check current device compatibility, version details, regional pricing, and available languages.
Purchases are processed by Apple. Review the price and any renewal terms in the confirmation sheet before accepting a purchase. Keep important records backed up using the export or backup options supported by your chosen tool; restoring a purchase and restoring personal records are different tasks. Our purchase and backup help explains where to start. Read the product-specific privacy policy above for details on optional services, or see our website data practices.