ReAct vs FastingBestie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReAct
This app helps you lose weight by building willpower through a two-step planning process. Create custom plans to replace overeating with healthy actions, track your progress, and learn the science behind the method.
- Create 2-step willpower plans
- Track plan completion
- Edit and customize plans
- Choose suggested or custom actions
- Learn weight loss science
- Share plans via screenshot
- Rearrange plans in a grid
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Lose weight by strengthening willpower to avoid overeating in just 2 steps. Features - Create 2-step plans to redirect your habitual action of overeating with new, healthy alternative actions. - Track the number of times you have performed your new plan. - Choose not to complete your plan, which will not add to your completion number. - View all your plans in a grid list each integrated with your successful completions. - Edit your plans for greater success by choosing actions that work better for you. - Choose from suggested scenarios and actions, or write your own. - Get help understanding the basics of the science behind this weight loss concept. - Share your plans with a full resolution screenshot. - Tap and hold on a plan, then drag to rearrange its position in the grid.
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 rating: FastingBestie at 5.0 against ReAct's 2.0. FastingBestie also leads on review sentiment (100% vs 67%). ReAct's advantage is iOS requirement (10.0 vs 26.2). On price, ratings volume, 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. ReAct sells 1 one-off in-app purchase 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.
FastingBestie holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews point the same way: 67% of ReAct's written reviews are positive against 100% of FastingBestie's.
| Parameter | ReAct | FastingBestie |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (5 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 4 |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 10.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 17 MB | 66 MB |
| Age rating | 4+ | 17+ |
| Developer | Zaminiti Pty Ltd | Marshall Matters Ventures Pte Ltd |
Customer experience
ReAct
FastingBestie
In-app purchases
ReAct
- ReAct Pro$5.99
FastingBestie
- Monthly Recurring Subscription$9.991 Month
- Annual Recurring Subscription14 Days trial$59.991 Year
- Lifetime Subscription$124.99









