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, receive timely reminders, and sync data with Apple Health. Customize the app's appearance to your preference.

Highlights
  • One-tap logging
  • Daily goal tracking
  • Customizable reminders
  • Apple Health integration
  • Home and Lock Screen widgets
  • Streak tracking
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. • One tap for a glass, can, bottle or large bottle, 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. 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 a glass 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 • Eight accents, each with its own app icon. • 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. 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

This app helps you stay hydrated with gentle reminders and a charming animal companion. Log your water intake easily, set personal goals, and earn new pets as you maintain your streak. It offers household profiles and basic health app syncing for free.

Highlights
  • Daily water total tracking
  • Customizable daily goals
  • Gentle sip reminders
  • Home Screen widgets
  • Animal companions and streaks
  • Household profiles
  • Health app syncing
Features
Read full description

Drinking enough water should feel like a small kindness, not a chore. Log a sip, see your day fill up, and let Otter keep you company along the way. Everyday tracking is free, with no ads and no subscription. YOUR NEXT SIP, MADE SIMPLE • Today's water total, always in view • Add a drink in a tap and choose your own daily goal • Optional, gentle sip reminders • Ounces or milliliters • Home Screen widgets A SMALL REWARD FOR SHOWING UP Start with Otter and four free wildlife companions: Axolotl, Capybara, Red Panda, and African Penguin. Earn Cat, Dog, Fox, and Lion by keeping your logging streak. Companions you have earned or bought stay yours. FOR THE WHOLE HOUSEHOLD Add household profiles for free. Kids profiles use their own manual goals, never adult activity or heat adjustments. FREE FOR EVERYDAY LIFE Water logging, manual goals, streaks, household profiles, widgets, and optional reminders stay free. Basic Health app water syncing and available health metrics are free too, with your permission. THIRSTY PRO: OPTIONAL, ONE-TIME Pro unlocks all classic animals and adaptive goal guidance that uses local weather and your workout and activity information to suggest a daily goal. Guidance refreshes while you use the app. Weather and Health permissions are optional. Not a subscription. Pro does not include the separate Mythic Creatures collection or every separately sold companion. MAKE IT YOURS Individual companions and the Mythic Creatures collection are optional one-time purchases, and purchases can be restored. Existing Pro owners keep Pro access, and verified pre-3.0 customers keep their existing adaptive guidance. QUIET AND PRIVATE BY DESIGN No advertising. Your Health data is used for your hydration experience and never sold. Weather uses approximate location, only with your permission. One sip at a time. Made thoughtfully by House Rhymaun. Less noise. More life. Hydration guidance is an estimate, not medical advice. Follow your clinician's advice, especially if you have fluid restrictions.

Screenshots

Hydrate Easy4 screens
Thirsty Day4 screens

Verdict

The call

The clearest difference is in-app purchases: Hydrate Easy at none against Thirsty Day's 10. Thirsty Day's advantage is update cadence (every 2 days vs every 4 months). On price, rating, ratings volume and ads there is nothing between them.

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. Thirsty Day sells 10 one-off in-app purchases. Hydrate Easy asks for nothing beyond the download.

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 4 months, Thirsty Day every 2 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
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 4 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size4 MB22 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 ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hydrate Easy

No in-app purchases

10 purchases

Thirsty Day

One-time10
  • Cloud Wisp$0.99
  • Dog$0.99
  • Fox$0.99
Show 7 more
  • Tiger$0.99
  • Elephant$0.99
  • 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 no in-app purchases.
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 4 months, and Thirsty Day every 2 days. Most recently, Hydrate Easy was updated on October 25, 2026 and Thirsty Day on October 29, 2026.

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