Zero Fast Intermittent Fasting vs FastingBestie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zero Fast Intermittent Fasting
Track your intermittent fasting journey with an AI-powered coach. Get personalized plans, real-time metabolic insights, and science-backed education to support your weight management and metabolic health goals. Log hydration, weight, and mood to optimize your fasting experience.
- AI Fasting Coach
- Personalized weekly fasting plans
- Multiple fasting profiles
- Real-time metabolic tracking
- Hydration logging
- Weight and progress dashboard
- Apple Health integration
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Zero Fast is the smartest way to track intermittent fasting. Whether you follow a 16:8 schedule, 18:6, or a custom plan, our AI-powered fasting coach guides you from start to finish with real-time metabolic insights, personalized recommendations, and science-backed education. WHY ZERO FAST? No calorie counting. No strict diets. Just tap, fast, and let our AI handle the rest. Zero Fast learns your patterns and builds a weekly fasting plan tailored to your weight loss goals, lifestyle, and schedule. FEATURES THAT SET US APART: • 11+ Fasting Profiles — Circadian rhythm (12h), 16:8, 18:6, OMAD, 36h Monk fast, and more. Or create your own custom schedule. • Real-Time Metabolic Tracking — See when your body enters fat burning, ketosis, and autophagy with phase-by-phase progress. • Hydration Logging — Track every glass of water. Stay hydrated and support your fasting results. • Weight & Progress Dashboard — Chart your weight trends, fasting streaks, and adherence score over time. • Apple Health Integration — Sync weight, steps, calories, and hydration with HealthKit for a complete health picture. • Smart Notifications — Get reminders before your fasting window opens and motivational milestones throughout your fast. • Fasting Journal — Log mood, energy, and hunger to uncover patterns that improve your results. • Private & Secure — Your health data stays on your device. No selling, no sharing. WHO IS ZERO FAST FOR? Beginners exploring intermittent fasting for the first time. Experienced fasters who want AI-driven optimization. Anyone looking for a sustainable, science-backed approach to weight management and metabolic health. Download Zero Fast today and let your body do what it was designed to do.
FastingBestie
This app offers personalized intermittent fasting plans for women, adapting to their menstrual cycles. It integrates with Apple Health to sync cycle and weight data, providing tailored guidance for each phase. Manual entry is also supported for those with irregular cycles.
- Cycle-synced fasting guidance
- Apple Health integration
- Personalized fasting windows
- Phase-specific wellness suggestions
- Progress tracking
- Manual data entry
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Easy intermittent fasts, synced to your cycle. FastingBestie turns Apple Health data into fasting and life guidance that fits you. Most fasting apps give everyone the same plan: 16:8, every day, no matter where they are in their cycle. FastingBestie is different: a cycle-aware fasting tracker for women, built to help you fast with your body instead of against it. Connect Apple Health and FastingBestie can use your cycle, height, and weight data to personalize your fasting guidance. If your smart scale, wearable, or health app writes supported measurements to Apple Health, FastingBestie can bring them into your progress view. That can include Withings, Xiaomi, Oura, Whoop, and other devices that sync through Apple Health. You can also use FastingBestie with manual entry. Your cycle does not have to be textbook, and your period does not have to arrive on a perfect schedule. FastingBestie estimates your current phase from your own cycle length, then adjusts your fasting window through Menstrual, Follicular, Ovulatory, and Luteal phases. WHY GENERIC FASTING APPS FAIL WOMEN Most fasting advice is based on male physiology, where hormones follow a daily rhythm. Women's hormones shift across the menstrual cycle, affecting energy, cravings, water weight, training, sleep, and how well you tolerate longer fasts. FastingBestie helps you stop guessing. It recommends a fasting window that changes with your phase, goal, experience level, dietary preferences, and recent fasting history. APPLE HEALTH AT THE CENTER Bring your health data into one fasting view: * Sync period and cycle data from Apple Health * Import weight from Apple Health, including compatible smart scales and apps * See weight trends alongside your cycle phases * Log weight manually when you prefer * Keep HealthKit data on your device CYCLE-AWARE FASTING GUIDANCE Your fasting plan changes as your cycle changes: * Menstrual: gentle, nourishing fasts while your body resets * Follicular: more room to stretch your fasting window as energy builds * Ovulatory: supportive fasting while hormones peak * Luteal: shorter, gentler fasts before your next period No fixed calendar assumption. FastingBestie works from your cycle length. FEATURES BUILT FOR FEMALE BIOLOGY * Hormone-adaptive fasting timer with multiple protocols. * Daily fasting recommendation based on your current cycle phase * Apple Health cycle sync, with manual tracking as a fallback * Apple Health weight import and manual weight logging * Progress charts for cycle-related weight changes * Phase-specific food, movement, and wellness suggestions * Easy editing for past fasts and weight entries * Fasting-stage guidance as hours pass * Apple Watch companion app for tracking on the go FOR EVERY RHYTHM FastingBestie is made for real bodies and real cycles: * Irregular cycles * PCOS-friendly, gentler fasting support * Perimenopause and changing cycle patterns * Menopause, when fasting priorities shift toward sleep, muscle, and metabolic health * Beginners who want an easy fast * Experienced fasters who want smarter timing PRIVACY FIRST No account required. Health, cycle, fasting, and biometric data stays on your device. Apple Health imports are processed on-device and are never uploaded or shared. We never sell your health data. FAST WITH YOUR BODY, NOT AGAINST IT FastingBestie is your fasting bestie for cycle-aware intermittent fasting, Apple Health weight tracking, and guidance that respects your rhythm. Start your free 14-day trial. Choose an annual, monthly, or lifetime subscription. Disclaimer: For informational purposes only. Not medical advice. Consult your healthcare provider before starting any fasting routine, especially if pregnant, breastfeeding, managing a medical condition, or with a history of disordered eating. By subscribing, you agree to the Apple Standard EULA at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ and our Terms of Use at https://fastingbestie.com/terms/.
Screenshots
Verdict
The clearest difference is ratings volume: FastingBestie at 4 against Zero Fast Intermittent Fasting's 1. On price, rating, review sentiment and update cadence 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 Fast Intermittent Fasting sells 2 in-app purchases, starting at $6.99 per month and FastingBestie sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Zero Fast Intermittent Fasting against 5.0 for FastingBestie. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 16, 2026 and September 19, 2026 respectively.
| Parameter | Zero Fast Intermittent Fasting | FastingBestie |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 37 MB | 66 MB |
| Age rating | 12+ | 17+ |
| Developer | APPE LATTE LIMITED | Marshall Matters Ventures Pte Ltd |
Customer experience
Zero Fast Intermittent Fasting
FastingBestie
In-app purchases
Zero Fast Intermittent Fasting
- Zero Fast Monthly$6.991 Month
- Zero Fast Annually$49.991 Year
FastingBestie
- Monthly Recurring Subscription$9.991 Month
- Annual Recurring Subscription14 Days trial$59.991 Year
- Lifetime Subscription$124.99
Questions
Is Zero Fast Intermittent Fasting free?
Is FastingBestie free?
Which has better reviews, Zero Fast Intermittent Fasting or FastingBestie?
Do Zero Fast Intermittent Fasting or FastingBestie have ads?
Which is updated more often, Zero Fast Intermittent Fasting or FastingBestie?
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