Comparison

ReHydration vs DrinkDay

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

Head to head
About

ReHydration

This application helps you build a consistent water drinking habit. It sends reminders, tracks your daily intake, and calculates personalized hydration goals based on your body weight, age, and lifestyle. Monitor your progress with historical data and share your achievements with friends.

Highlights
  • Personalized hydration goals
  • Daily reminders and alerts
  • Water intake logging
  • Intake history and graph view
  • Customizable notification frequency
  • Share daily intake with friends
Features
Read full description

ReHydration, name itself says to hydrate repeatedly. ReHydration is a water drink tracker and reminder app to create the water drink habit.It Sends daily reminders and alerts to motivates you to drink water and keeps a log of your daily water intake. Here we set water intake target using standard algorithm of water intake bases on your body weight, age and lifestyle. Revs up metabolism and helps you feel full. Why ReHydration : Easy Google+ or Facebook login. Beautifully Designed Attractive Home Screen / UI Appropriate Animation On time Notification No Internet Required for Intake process Set your own Notification frequency Standard Water Container Add your own water glass for daily water intake Available Standard Unit choices Show Intake history with Amazing Graph view Track your historical consumption during the day, week and month Not Disturb you while sleeping Share your Daily intake with your friends App that don't share your basic data with other fitness app. Benefit of Daily Water Intake : R : Repeatedly Hydrate E : Energise yourself H : Health Priority First Y : Young Every time D : Dehydration at its Bottom R : Recuperation at its Top A : Antidote that Protects you T : Treatment for Every Disease I : Immunity Level at its Best O : Oxidation meets Hydration N : No-Side Effects :) There are lots of Benefits of drinking water : weight control , nourish your skin, hair strength, organs function, energy level and many others. Helps you to have a good water balance on your body using notification and a tracker of how much you should drink water. Along with fibre, water is essential for good digestion. The rate of painful kidney stones is rising because people including children aren't drinking enough water. Drink Water, Stay Slim, Stay Feet.

About

DrinkDay

Easily monitor your water intake and receive helpful reminders to stay hydrated. Visualize your daily progress and identify areas for improvement to achieve your health goals.

Highlights
  • Hydration tracking
  • Drinking goal setting
  • Customizable reminders
  • Daily progress visualization
  • Improvement insights
Read full description

DrinkDay is an easy and engaging way to track your hydration and reach your drinking goal. Say goodbye to dehydration and hello to a healthier you. Get optional encouraging drinking reminders! You can also view your daily progress to see how you're doing and where you can improve.

Screenshots

ReHydration4 screens
DrinkDay4 screens

Verdict

The call

The clearest difference is update cadence: DrinkDay at every 5 days against ReHydration's every 5 months. ReHydration's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ReHydration ships an update every 5 months, DrinkDay every 5 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
ReHydration versus DrinkDay: the parameters behind the verdict, then further details
ParameterReHydrationDrinkDay
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—4 — better
Update frequencyEvery 5 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size63 MB2 MB
Age rating4+4+
DeveloperHardik ShahTigerfish Productions LLC

Customer experience

ReHydration

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

DrinkDay

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ReHydration

No in-app purchases

None

DrinkDay

No in-app purchases

Questions

Is ReHydration free?
ReHydration is free to download, with no in-app purchases.
Is DrinkDay free?
DrinkDay is free to download, with no in-app purchases.
Do ReHydration or DrinkDay have ads?
Neither ReHydration nor DrinkDay shows ads.
Which is updated more often, ReHydration or DrinkDay?
ReHydration ships an update every 5 months, and DrinkDay every 5 days. Most recently, ReHydration was updated on October 13, 2026 and DrinkDay on October 6, 2026.

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