Zero vs Fasting Tracker App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zero
This app tracks intermittent fasting and nutrition to help users achieve real body composition changes. It integrates fasting, protein intake, meals, hydration, and habits for a holistic approach to weight loss and metabolic health.
- Intermittent fasting timers and streaks
- Smart meal logging with photo recognition
- Personalized daily protein target tracking
- Integrated fasting and protein tracking
- Water and habit tracking
- Science-based insights on fasting and nutrition
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Zero is the all-in-one fasting tracker and nutrition app built for real results. Most fasting and weight loss apps stop at simply tracking fasts or calories. Zero connects the full picture — fasting, protein, meals, hydration, and habits — so you actually change your body composition, not just your eating schedule. Here’s how Zero helps you get there: • Track your intermittent fasting — Engage timers, streaks, and insights keep you stay motivated and consistent across your entire fasting journey. • Log meals the smart way — Skip the tedious manual meal entry routine. With Zero Plus, snap a photo and get instant macros, protein composition, and clarity on how effectively your meals support your goals. Your first meal logs are on us, so you can try it before you subscribe. • Hit your Protein Score — Zero Plus tracks a personalized daily protein target that adapts to your weight and goals. Better protein = better satiety, better muscle retention, better weight loss. Zero makes it automatic. • Complete the equation: Fasting + Protein — Most people fast or track meals. Zero brings them together so you lose weight, protect muscle, and avoid the pressure and guilt of traditional calorie trackers. • Stay hydrated to power your fasts — Water tracking with Zero Plus helps you maintain energy, reduce cravings, and support metabolic function throughout the day. • Build healthy habits that actually matter — Track movement, sleep, mood, and other daily pillars that reinforce your fasting and fueling routine. • Challenge yourself — Hit protein targets, maintain fasting streaks, and stay accountable with motivating challenges built around outcomes, not vanity metrics. • Learn the real science — Understand how fasting, protein, and hydration work together for sustainable weight loss and metabolic health — with insights from leading experts. • See measurable progress — Watch your streaks grow, your protein consistency rise, and your body composition improve with clean, insightful trend views. Whether you’re starting out or optimizing an existing routine, Zero gives you the structure, guidance, and clarity most apps miss. Zero is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider before making any changes to your diet, fasting routine, or health regimen. Zero is free to download, with fasting timers, streaks, weekly trends, expert articles, and challenges included. Zero Plus is an optional subscription that unlocks photo meal logging and your Protein Score, water tracking, custom fasts and saved presets, Fat-Burning Mode, the mood journal and daily habit insights, premium articles and Plus-only challenges, and monthly, yearly, and correlated charts. A free trial is available. Payment for Zero Plus will be charged to your Apple Account when you subscribe. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Manage your subscription in your Account Settings. Read more terms & conditions: Terms of use: https://www.zerolongevity.com/terms-of-use Privacy policy: https://www.zerolongevity.com/privacy-policy
Fasting Tracker App
This app helps users track intermittent fasting for weight loss and healthy lifestyle development. It offers customizable timers, various fasting plans, and progress insights. Integrates with Apple Health and Apple Watch for seamless data management.
- Customizable fasting timer
- 15+ fasting plans
- Create custom plans
- Progress tracking with Insights
- Apple Watch support
- Apple Health integration
- Widgets for progress view
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Fasta is a simple, beautiful, and customizable fasting tracker app. Its elegant interface makes it super easy to track your ongoing fasts and also see your progress over time. Intermittent fasting is one of the most popular, healthy, and effective weight-loss method. Fasta will help you reach your weight goals and develop a healthy lifestyle. Key features of the app: • Customise fasting timer with 3 different shapes and 50+ beautiful color themes • 15+ different fasting plans to choose from • Create custom fasting plans • Track your progress with Insights • 100% private, all the data is stored in the iCloud account • Understand what's happening inside your body while fasting • Dark Mode support • Apple Watch support • Siri Shortcuts support • Apple Health app integration helps keep your weight data in sync • View your progress with widgets Some of the popular fasting plans are: • 16-hour fast, or the 16:8 Intermittent Fast, where you fast for 16 hours and have an 8-hour feeding window. • Circadian Rhythm Fast, this 13-hour fast starts around sunset to align your eating window with your body’s clock. Fasta automatically calculates the daily sunset for you. • 18-hour fast, or 18:6 for more advanced fasters • Other popular fasts include OMAD (one meal a day), 20:4 fast, and custom fasts up to 7 days Fasting plans available in the app: • Beginner - 12:12, 13:11, 14:10, 15:9 • Intermediate - 16:8, 17:7, 18:6, 19:5 • Advanced - 20:4, 21:3, 22:2, 23:1 • Circadian Rhythm Plans: Straight, Reversed • Alternate Day Plan - 36:12 • Custom Plans Read more about our Terms & Conditions and Privacy Policy here: https://miary.app/fasta/privacy_terms.html We are always there for you! - If you are facing any issues or have questions, please feel free to email us. Hope you enjoy using our app as much as we do! :)
Screenshots
Verdict
Zero and Fasting Tracker App both sit at 4.8 stars, but that hides the real split: 61% of Fasting Tracker App's written reviews are positive against 32% of Zero's. Fasting Tracker App also leads on device support (4 vs 2) and iOS requirement (13.0 vs 17.0). Zero's advantage is ratings volume (445K vs 866) and update cadence (every 2 weeks vs every 6 weeks). On price, rating, ads and in-app purchases 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. Zero sells 10 in-app purchases, starting at $9.99 per month and Fasting Tracker App sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Zero holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Zero has 445K ratings behind it against 866, so its average is the more settled of the two. Written reviews complicate that: 32% of Zero's written reviews are positive against 61% of Fasting Tracker App's, so the app with the better star average is not the one people write more warmly about.
Zero ships an update every 2 weeks, Fasting Tracker App every 6 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.
| Parameter | Zero | Fasting Tracker App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (445K ratings) — better | 4.6 (866 ratings) |
| Positive reviews | 32.2% of reviews | 61.0% of reviews — better |
| Number of ratings | 445K — better | 866 |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | #135 — better | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 195 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Zero Longevity Science, Inc. | Akash Jain |
Customer experience
Zero
Fasting Tracker App
User reviews
Zero
From 445K App Store ratingsWhat we love
- 🚀 Easy to use
- 📊 Helpful tracking and data
- 💡 Informative learning resources
- 🔍 Detailed fasting information
- 🤝 Sense of community
Room to improve
- 💰 Expensive premium subscription
- 🔒 Forced account creation
- 🙄 Intrusive ads and upsells
- 🤔 Inconsistent or confusing UI changes
- 🐛 Syncing and login issues
Fasting Tracker App
From 866 App Store ratingsWhat we love
- 🚀 Simple and straightforward
- 👍 Customizable fasting plans
- 🚀 Clean and intuitive interface
- 👍 Helpful insights and guidance
- 🚀 Accurate fasting tracking
Room to improve
- 🐛 Apple Watch sync issues
- 🔍 Limited customization options
- ⏱️ No timer for eating window
- 💰 Overcharging for discounted offers
- 🔍 Lack of advanced features
Bugs and requests
Zero
Reported bugs
3 issues- Password reset problems
- Inaccurate fasting time tracking
- Inability to exit trial without subscribing
Requested features
6 requests- Custom fasting periods longer than 24 hours
- Ability to edit fasting type and duration
- Integration with more health/fitness apps
- Water intake tracking
- Personalized fasting recommendations
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- Improved data visualization and analytics
Fasting Tracker App
Reported bugs
3 issues- Fasting streak not tracking properly
- Widget not working on iOS 16
- Unable to restore in-app purchases
Requested features
5 requests- Add timer for eating window
- Improve Apple Watch integration
- Expand customization options
- Implement monthly/weekly view
- Add water tracking functionality
In-app purchases
Zero
- Zero Plus Subscription2 variants$9.991 Month
- Zero Plus Subscription7 Days trial$9.991 Month
- Zero Plus Subscription$39.991 Year
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- Zero Plus Subscription7 Days trial$49.991 Year
- Zero Plus Subscription7 Days trial3 variants$69.991 Year
- Zero Plus Subscription$69.991 Year
- Zero Plus Subscription1 Year trial3 variants$69.991 Year
- Zero Plus Subscription1 Month trial$69.991 Year
- Zero Plus Subscription1 Month trial$89.991 Year
- Zero Plus Subscription7 Days trial$89.991 Year
Fasting Tracker App
- Fasta Monthly3 Days trial$1.991 Month
- Fasta Yearly7 Days trial$10.991 Year
- Fasta Lifetime$9.99
- Fasta Lifetime$19.99
Questions
Is Zero free?
Is Fasting Tracker App free?
Which has better reviews, Zero or Fasting Tracker App?
Do Zero or Fasting Tracker App have ads?
Which is updated more often, Zero or Fasting Tracker App?
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