WaterWhale vs NutZero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Break unwanted habits
- Build self-discipline
- Daily streak tracking
- Monitor progress
- Strengthen focus
- Distraction-free experience
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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
Verdict
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
Both are free to download. NutZero sells 3 in-app purchases, starting at $0.99 per month. WaterWhale asks for nothing beyond the download.
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.
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.
| Parameter | WaterWhale | NutZero |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 10 days | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Jisoo Kim | Sujan Anand |
Customer experience
WaterWhale
NutZero
In-app purchases
WaterWhale
No in-app purchases
NutZero
- NutZero Premium Monthly$0.991 Month
- NutZero Premium Yearly$12.991 Year
- Nut Zero Lifetime$19.99









