Comparison

H2O vs Water Tracker

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

Head to head
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

About

Water Tracker

Features
Read full description

Your Personal Hydration Coach Water Tracker helps you drink more water and stay perfectly hydrated every day. Simple, beautiful, and completely ad-free. Why Water Tracker? - Smart Water Reminders - Never forget to drink water - No Ads Ever - Clean, distraction-free experience - 100% Offline - Works without internet - Completely Private - Your data stays on your device - No Account Required - Start tracking immediately Daily Hydration Made Easy - Custom Water Intake Goals - Personalized to your body and lifestyle - Smart Drink Reminders - Timely notifications throughout the day - Quick Logging - Add water with one tap - Multiple Drink Types - Water, coffee, tea, juice, and more - Hydration Coach - Get personalized tips and insights Track Your Water Consumption - Daily water intake tracker with beautiful visualizations - Hydration log with complete history - Weekly and monthly statistics - Drinking patterns and trends - Hydration streaks and achievements - Custom cup sizes for accurate tracking Personal Water Tracker Features - Customize your daily hydration goal - Set your own reminder schedule - Track different beverage types - Morning hydration reminders - Pre-meal water reminders - Bedtime hydration cutoff Beautiful Hydration Log - View your complete water consumption history with elegant charts and statistics. Track your progress, identify patterns, and celebrate your hydration achievements. Smart Daily Hydration Reminders - Our intelligent reminder system learns your routine and sends gentle notifications when it's time to drink water. Customize reminder frequency, timing, and sounds to fit your lifestyle. Your Hydration Coach - Get personalized insights based on your water intake patterns. Learn how much water you need, when to drink, and tips for building lasting hydration habits. No Ads, Ever - Water Tracker is completely ad-free. Focus on your hydration without distractions, pop-ups, or interruptions. Privacy First - Your personal water tracker data belongs to you. Everything stays on your device - no cloud sync, no accounts, no data collection. Download Water Tracker today and make hydration a healthy habit! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

H2O4 screens
Water Tracker4 screens

Verdict

The call

The clearest difference is update cadence: H2O at every 3 days against Water Tracker's weekly. Water Tracker's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support 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. H2O sells 4 in-app purchases, starting at $1.99 per month and Water Tracker sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

H2O ships an update every 3 days, Water Tracker weekly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
H2O versus Water Tracker: the parameters behind the verdict, then further details
ParameterH2OWater Tracker
PriceFreeFree
Rating4.5 (166 ratings) — better—
Positive reviews84.9% of reviews—
Number of ratings166 — better—
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size48 MB56 MB
Age rating12+4+
DeveloperLunarbits LLCManoj Ahirwar

Bugs and 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

Water Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

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
3 purchases

Water Tracker

Subscriptions2
  • Waterly - Weekly Access$2.997 Days
  • Waterly - Yearly Pro Access$12.991 Year
One-time1
  • Waterly - Lifetime Pro Access$24.99

Questions

Is H2O free?
H2O is free to download, with in-app purchases available.
Is Water Tracker free?
Water Tracker is free to download, with in-app purchases available.
Do H2O or Water Tracker have ads?
Neither H2O nor Water Tracker shows ads.
Which is updated more often, H2O or Water Tracker?
H2O ships an update every 3 days, and Water Tracker weekly. Most recently, H2O was updated on October 29, 2026 and Water Tracker on October 25, 2026.

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