Comparison

WaterWhale vs NutZero

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

Head to head
About

WaterWhale

This app helps you build a healthy hydration habit with simple tracking and smart reminders. It offers personalized notifications, insightful statistics, and two distinct display modes for a flexible and intuitive user experience. All data is stored locally for enhanced privacy.

Highlights
  • Easy water logging with quick-add buttons
  • No account sign-up required, local data storage
  • Smart, personalized hydration reminders
  • Insightful statistics and streak tracking
  • Two display modes: Simple and Whale
  • Custom units and personalized daily goals
  • Offline functionality
Features
Read full description

Stay Hydrated, Simply and Smartly WaterWhale helps you build a healthy hydration habit with simplicity and consistency. No sign-up required — start tracking right away. [Easy Water Logging] Quick-add buttons for common containers, or enter any custom volume freely. Track every sip with ease. [No Account Needed] Your privacy comes first. All data is stored locally on your device. Nothing is shared or uploaded. [Smart Reminders] Personalized notifications help you remember to drink throughout the day. Set your preferred hours and intervals easily. [Insightful Statistics] Understand your hydration patterns with: • Weekly and monthly summaries • Streak tracking to celebrate consistency • Clear progress visualization [Two Display Modes] Choose your preferred style: • Simple Mode for clean, minimal tracking • Whale Mode with an adorable companion that celebrates your progress [Flexible and Intuitive] • Custom units (ml/oz, kg/lb) • Personalized daily goal based on your body and activity • Works fully offline [Perfect For] • Health-conscious users • Busy professionals • Habit builders and hydration beginners Start your healthy hydration journey today with WaterWhale — your simple, privacy-friendly hydration companion.

About

NutZero

This app helps you overcome unwanted habits and cultivate self-discipline. Track your daily progress and build focus through consistent effort. Achieve greater control and confidence with a clean, distraction-free interface.

Highlights
  • Break unwanted habits
  • Build self-discipline
  • Daily streak tracking
  • Monitor progress
  • Strengthen focus
  • Distraction-free experience
Features
Read full description

NutZero is designed to help you break unwanted habits and build lasting self-discipline. Stay accountable with daily streak tracking, monitor your progress, and strengthen your focus through consistent effort. With a clean and distraction-free experience, NutZero supports your journey toward better habits, stronger control, and a more confident version of yourself. Privacy Policy: https://sites.google.com/view/nutzeroo/home Terms of Use: https://sites.google.com/view/nutzerotermsofservice/home

Screenshots

WaterWhale4 screens
NutZero4 screens

Verdict

The call

The clearest difference is in-app purchases: WaterWhale at none against NutZero's 3. WaterWhale also leads on iOS requirement (13.0 vs 15.1). NutZero's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume 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. NutZero sells 3 in-app purchases, starting at $0.99 per month. WaterWhale 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 WaterWhale against 5.0 for NutZero. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

WaterWhale ships an update every 10 days, NutZero every 5 days. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
WaterWhale versus NutZero: the parameters behind the verdict, then further details
ParameterWaterWhaleNutZero
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequencyEvery 10 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.1
Further details — not scored
Size31 MB45 MB
Age rating4+17+
DeveloperJisoo KimSujan Anand

Customer experience

WaterWhale

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

NutZero

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

In-app purchases

None

WaterWhale

No in-app purchases

3 purchases

NutZero

Subscriptions2
  • NutZero Premium Monthly$0.991 Month
  • NutZero Premium Yearly$12.991 Year
One-time1
  • Nut Zero Lifetime$19.99

Questions

Is WaterWhale free?
WaterWhale is free to download, with no in-app purchases.
Is NutZero free?
NutZero is free to download, with in-app purchases available.
Which has better reviews, WaterWhale or NutZero?
WaterWhale and NutZero are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do WaterWhale or NutZero have ads?
WaterWhale shows ads; NutZero does not.
Which is updated more often, WaterWhale or NutZero?
WaterWhale ships an update every 10 days, and NutZero every 5 days. Most recently, WaterWhale was updated on October 8, 2026 and NutZero on October 6, 2026.

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