Comparison

Water Tracker! vs H2O

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

Head to head
About

Water Tracker!

Easily monitor your daily water consumption with this straightforward application. It offers custom reminders and integrates with Apple's Health app to visualize your hydration progress.

Highlights
  • Easy water intake tracking
  • Widget support
  • HealthKit integration
  • Customizable reminders
Read full description

A simple and free to use app to track your water intake. Easily track how much water you drink. Water Tracker! integrates with HealthKit so you can see your progress using Apple's Health app Features - Easy to use - Widget - Health app Integration - Custom Reminders

About

H2O

This application helps you monitor your daily water consumption to ensure you stay adequately hydrated. It offers a visually appealing interface with features for quickly logging intake and reviewing your progress.

Highlights
  • Log water intake quickly
  • Preset water amounts
  • Weekly intake graph
  • Full history of entries
  • HealthKit integration
  • Intuitive interface
Features
Read full description

Most water apps give you the same goal every day. H2O raises yours on hot days and after workouts, so you drink what your body actually needs. Log a glass in one tap from your iPhone, Apple Watch or Home Screen, and watch your streak grow on the calendar. H2O makes staying hydrated the easiest habit you'll build. H2O has helped people stay hydrated since 2016, and version 2.0 is rebuilt from the ground up. FEATURES ◉ Daily goals that adapt to the local weather and your workouts in Apple Health. ◉ Quickly add entries with preset water amounts, or enter a custom amount. ◉ An Apple Watch app with complications for your watch face. ◉ Home Screen widgets that log water with one tap. ◉ Gentle reminders to drink throughout the day. ◉ A calendar that shows every day you hit your goal. ◉ Charts of your weekly and monthly water intake. ◉ A full history of water entries. ◉ Apple Health integration and iCloud sync across your devices. ◉ Export your water history as a PDF. ◉ Track in ounces or milliliters. ◉ Support for VoiceOver, Voice Control, Larger Text and Reduced Motion. ◉ A beautiful and intuitive interface! H2O PRO H2O requires H2O Pro, available as a monthly or yearly auto-renewing subscription, or as a one-time lifetime purchase. The yearly plan includes a 7-day free trial for eligible new subscribers. If you used H2O before version 2.0, the app stays free for you, and H2O Pro adds adaptive goals and PDF export. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ H2O Terms: https://lunarbits.io/terms.html Privacy Policy: https://lunarbits.io/privacy.html

Screenshots

Water Tracker!3 screens
H2O4 screens

Verdict

The call

The clearest difference is ratings volume: H2O at 175 against Water Tracker!'s 3. Water Tracker!'s advantage is review sentiment (100% vs 85%) and iOS requirement (9.3 vs 26.0). On price, rating, update cadence 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. Water Tracker! sells 1 one-off in-app purchase and H2O sells 4 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

H2O holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: H2O has 175 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Water Tracker!'s written reviews are positive against 85% of H2O's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Water Tracker! ships an update every 5 days, H2O every 3 days. The most recent releases landed on October 12, 2026 and November 1, 2026 respectively.

Scorecard3 real differences · 7 level
Water Tracker! versus H2O: the parameters behind the verdict, then further details
ParameterWater Tracker!H2O
PriceFreeFree
Rating4.3 (3 ratings)4.5 (175 ratings) — better
Positive reviews100.0% of reviews — better84.9% of reviews
Number of ratings3175 — better
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS9.3 — better26.0
Further details — not scored
Size17 MB48 MB
Age rating4+12+
DeveloperHYPERFAZE, LLCLunarbits LLC

Customer experience

Water Tracker!

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

H2O

All ratings129 ratings
Positive86.8%
Neutral3.9%
Negative9.3%
Written reviews53 reviews
Positive84.9%
Neutral1.9%
Negative13.2%

Bugs and requests

Water Tracker!

Not enough reviews yet to summarise bugs or requests.

H2O

Reported bugs

5 issues
  • App crashes when accessing settings
  • App shuts off when accessing settings
  • Graph feature not working
  • App closes when goal is reached
  • Glitches when reaching goal

Requested features

20 requests
  • Add reminder notifications
  • Allow editing of previous day's entries
  • Add metric units (ml/L)
  • Add widget support
  • Add export to HealthKit option
Show 15 more
  • Add ability to flip to a second profile
  • Add Apple Watch integration
  • Add dark mode
  • Add support for other beverages (coffee, tea)
  • Add Shortcuts support
  • Fix app closing when goal is reached
  • Fix glitches when reaching goal
  • Clarify how to delete entries
  • Add total fluid intake of previous days by each day in history
  • Allow changing the date/time of an entry
  • Allow the app to read HealthKit data
  • Automatically update daily goal with age, weight, and gender
  • Refine daily goal with location and activity data
  • Add a way to donate to the developer
  • Screen adjustment sizes for newer iPhones

In-app purchases

1 purchases

Water Tracker!

One-time1
  • Remove Ads$0.99
4 purchases

H2O

Subscriptions3
  • H2O Pro Monthly2 variants$1.991 Month
  • H2O Pro Yearly7 Days trial$9.991 Year
  • H2O Pro Yearly$9.991 Year
One-time1
  • H2O Pro Lifetime2 variants$19.99

Questions

Is Water Tracker! free?
Water Tracker! is free to download, with in-app purchases available.
Is H2O free?
H2O is free to download, with in-app purchases available.
Which has better reviews, Water Tracker! or H2O?
H2O is rated higher. Water Tracker! averages 4.3 out of 5 from 3 ratings, while H2O averages 4.5 from 175 ratings.
Do Water Tracker! or H2O have ads?
Neither Water Tracker! nor H2O shows ads.
Which is updated more often, Water Tracker! or H2O?
Water Tracker! ships an update every 5 days, and H2O every 3 days. Most recently, Water Tracker! was updated on October 12, 2026 and H2O on November 1, 2026.

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