Comparison

Hydrate Easy vs Thirsty Day

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Hydrate Easy

Easily track your daily water intake with simple logging and visual progress. Set personalized goals, customize drink sizes, and receive timely reminders to stay hydrated. Integrates with Apple Health and offers a private, ad-free experience.

Highlights
  • One-tap logging
  • Customizable drink sizes
  • Daily goal progress ring
  • History and streaks
  • Apple Watch support
  • Home and Lock Screen widgets
  • Smart reminders
Features
Read full description

Hydrate makes drinking enough water one tap. It tells you what's left today in plain words, logs a glass, can or bottle without typing, and keeps your streak going. No account, no subscription, nothing to set up beyond your goal. Today • What's left, up top: "24 oz to go", then "Goal reached". • A goal ring that fills as you drink. • Four quick sizes, one tap each, in ounces or milliliters. • Any other amount at any time, for the drink you forgot to log. • Change or delete any drink, on any day. Your own four sizes • Set each quick size to the cup you actually use: a 24 oz tumbler, a 400 mL mug, the office bottle. • Rename them too, so Today reads "Tumbler" instead of "Glass". • Your sizes follow you to Apple Watch, and the first one is what a reminder logs. History • Your daily average, goal days, streak and personal best for the last week or month. • A bar for every day, and every day's drinks to look back on or put right. Apple Watch • Log a drink from your wrist and see what's left today. • Complications for your watch face. • Drinks logged on your Watch reach your iPhone, even if it was out of reach for a while. Widgets • Home Screen and Lock Screen widgets show what's left at a glance. Reminders • Reminders every one to four hours, between the hours you choose. • Each one says what's left, and they stop for the day once you reach your goal. • Log your first quick size straight from the reminder. Apple Health • Connect Apple Health and every drink you log is saved there as Water. • Delete a drink in Hydrate and it's deleted from Apple Health too. • Hydrate only saves Water. It doesn't read anything from Apple Health. Make it yours • Pick an accent color and the Home Screen icon changes to match. • Light, or one of two darks: soft Graphite or true Black. Private by design • Your drinks stay on your device. No accounts, analytics, ads or tracking. A drop, if you like • Hydrate is free, with nothing to unlock and no ads. If it helps you drink enough water, you can leave a one-time tip in Settings: a Drop, a Glass, a Bottle or a Jug. Tips go through the App Store and change nothing in the app. Hydrate helps you build a daily habit. It isn't medical advice; ask your doctor how much water is right for you.

About

Thirsty Day

Track your daily fluid intake with a charming animal companion. Log various drinks, set personalized goals, and receive optional reminders. Sync with Apple Health and enjoy features across iPhone, iPad, and Apple Watch.

Highlights
  • Log water, coffee, tea, and other drinks
  • Track total fluids, plain water, and caffeine
  • Set custom daily hydration goals
  • Receive optional reminders and use widgets
  • Interactive animal companions
  • Apple Watch quick logging
  • Sync with Apple Health
Features
Read full description

A little company for every sip. Thirsty Day makes it easy to keep track of your drinks, get to know your daily rhythm and enjoy a little animal company along the way. LOG YOUR DAY, YOUR WAY • Quick-add water or log coffee, tea and other drinks • See total fluids, plain water and caffeine separately • Edit caffeine estimates to match your label, including zero • Set your own daily goal in ounces or milliliters • Use optional reminders and Home Screen widgets YOU AND YOUR COMPANION See today's drinks alongside your animal's playful scale while keeping your own goal. Daily animal amounts are rough illustrations, not drinking targets. Some companions offer water facts rather than a volume comparison; Mythic scales are fictional. Say hello to your companion and swipe through hydration and animal facts with source links. Explore the field guide and save favorites. WITH YOU THROUGH THE DAY • Quick-log water from your Apple Watch for the profile shown on your paired iPhone • Enjoy roomy iPad layouts or keep things close on either iPhone Duo display • Use portrait, landscape or a smaller iPad window Watch drinks are saved when your phone is out of reach and transferred when it reconnects. Watch logging and iPad support are included in the core app. Apple Watch needs a paired iPhone with Thirsty Day. Your iPhone and iPad keep separate local journals; they do not automatically sync drink history. COMPANY YOU CAN KEEP Start with Otter. Earn Cat, Dog, Fox and Lion through logging streaks. Household profiles, kids' manual goals, facts and basic tracking remain available without Pro. Kids never receive adult activity or heat adjustments. Optional iCloud Squad Sync shares daily progress with friends you add. THIRSTY PRO Give your day a companion you love and a water estimate that can adapt to local weather and available activity. Monthly and yearly plans include classic and wildlife companions, 18 matching stickers to copy or share, and adaptive goal guidance. See how feels-like temperature, humidity and available Apple Health activity contribute to the estimate, and choose which inputs to enable. Weather and Health permissions are optional. Both plans provide the same Pro features. In the U.S.: $1.99/month or $9.99/year. Local prices and terms are shown before purchase. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account at confirmation. Manage or cancel in your App Store account settings. Already own lifetime Pro? Your access stays yours; no subscription is required for those features. Eligible early-supporter rights, the four wildlife companions granted before version 3.1, earned companions and individual purchases are preserved. Restore purchases to recover verified access. Mythic Creatures remains a separate optional one-time collection; individual companion purchases remain available. QUIET AND PRIVATE No ads. Basic Apple Health water syncing and available health metrics stay in the core app with your permission. Only plain, caffeine-free water—including unflavored sparkling water—can be written to Health; other drink details and caffeine remain in your local log. Health data is never sold. Weather uses approximate location with permission. Hydration and caffeine amounts are estimates, not medical advice. Follow your clinician's guidance, especially for fluid restrictions. Privacy: https://apps-privacy-stable.imaginary-grey.workers.dev/thirsty-privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Made thoughtfully by House Rhymaun.

Screenshots

Hydrate Easy4 screens
Thirsty Day4 screens

Verdict

The call

Hydrate Easy and Thirsty Day are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hydrate Easy sells 4 one-off in-app purchases and Thirsty Day sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Hydrate Easy against 5.0 for Thirsty Day. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Hydrate Easy ships an update every 2 days, Thirsty Day daily. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

ScorecardNo meaningful differences
Hydrate Easy versus Thirsty Day: the parameters behind the verdict, then further details
ParameterHydrate EasyThirsty Day
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 2 daysDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size4 MB65 MB
Age rating4+4+
DeveloperMatthew StricklandMarc Rhymaun

Customer experience

Hydrate Easy

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Thirsty Day

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Hydrate Easy

One-time4
  • Drop$0.99
  • Glass$2.99
  • Bottle$4.99
Show 1 more
  • Jug$9.99
10 purchases

Thirsty Day

Subscriptions2
  • Thirsty Pro Monthly$1.991 Month
  • Thirsty Pro Yearly$9.991 Year
One-time8
  • Fox$0.99
  • Tiger$0.99
  • Elephant$0.99
Show 5 more
  • Golden Mossback$0.99
  • Whale$0.99
  • Orbit Sprite$0.99
  • Emberwing$0.99
  • Moonhorn$0.99

Questions

Is Hydrate Easy free?
Hydrate Easy is free to download, with in-app purchases available.
Is Thirsty Day free?
Thirsty Day is free to download, with in-app purchases available.
Which has better reviews, Hydrate Easy or Thirsty Day?
Hydrate Easy and Thirsty Day are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Hydrate Easy or Thirsty Day have ads?
Neither Hydrate Easy nor Thirsty Day shows ads.
Which is updated more often, Hydrate Easy or Thirsty Day?
Hydrate Easy ships an update every 2 days, and Thirsty Day daily. Most recently, Hydrate Easy was updated on November 9, 2026 and Thirsty Day on November 6, 2026.

Other comparisons