Comparison

FastingLady vs Phasely

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

Head to head
About

FastingLady

This app helps women optimize intermittent fasting by syncing with their menstrual cycle. It tracks fasting sessions, period data, and weight, offering personalized plans and daily educational insights based on hormonal changes. Integrates with Apple HealthKit and Apple Watch for a comprehensive view of your health.

Highlights
  • Fasting session logging
  • Period and cycle tracking
  • Weight trend analysis
  • Personalized fasting plans
  • Daily hormonal insights
  • Apple HealthKit integration
  • Apple Watch app
Features
Read full description

FastingLady helps women fast smarter — not harder. Track your fasting sessions and period with ease, and sync your intermittent fasting plan with your menstrual cycle to understand your hormones like never before. Inspired by Fast Like a Girl by Dr. Mindy Pelz, FastingLady connects with Apple HealthKit to create a personalized fasting experience for every phase of your period. Features - Fasting Tracker: Log your intermittent fasting sessions effortlessly. - Period Tracker Integration: Automatically sync your menstrual cycle from Apple HealthKit. - Weight Tracker Integration: Automatically sync your weight from Apple HealthKit, and view your weight trends throughout your cycle. - Apple Watch App: Track your fasting time right from your Apple Watch. - Personalized Fasting Plans: Adjust fasting durations naturally according to hormonal changes throughout your period. - Daily Education: Learn about your body each day — hormone levels, how you may feel, what to eat, and the ideal fasting duration. - All-in-One Dashboard: View your fasting history, period, and cycle insights in one place. - Widget: Track your fasting time right from your home screen. - iCloud Sync: Sync your data across devices. Why I Built FastingLady After practicing intermittent fasting, I noticed great health benefits — but also hair loss and irregular spotting. Nothing explained why until I discovered Fast Like a Girl by Dr. Mindy Pelz. Following a fasting approach designed for women, my hair stopped falling out, my weight stabilized, and my period became more regular. I realized fasting and menstrual health are deeply connected. Since I couldn’t find an app that tracks both fasting and the menstrual cycle together, I created FastingLady — a daily companion for women who want to fast smart and stay in tune with their period. Disclaimer FastingLady is not affiliated with Dr. Mindy Pelz or Fast Like a Girl. This app does not provide medical advice and should not replace consultation with a healthcare provider. Always consult your doctor before making changes to your fasting, diet, or lifestyle. The developer assumes no liability for actions taken based on the app’s recommendations. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Phasely

Features
Read full description

Phasely is a fasting app built for women's bodies — not a generic fasting tracker with pink branding. Most fasting apps treat every day the same. But your hormonal cycle changes everything: how you respond to fasting, what your body needs, when to push and when to rest. Phasely adapts fasting windows to your current phase — shorter in the late luteal phase when cortisol is sensitive, longer when estrogen and energy are climbing. — FREE AT LAUNCH — The entire app is free. Track your cycle, see your phase, use the timer, log meal photos, and chat with the AI coach. A premium tier with unlimited coach queries is planned for a future release. — FEATURES — CYCLE-AWARE FASTING Personalized fasting window suggestions for each of your 5 phases: Reset (menstruation), Build (follicular), Peak (ovulation), Sustain (early luteal), and Soften (late luteal). No more pushing 16-hour fasts when your body needs an earlier breakfast. AI COACH GROUNDED IN REAL RESEARCH Ask anything — about fasting, hormones, energy, training, hunger, mood. The coach draws from peer-reviewed research and 6 expert camps including Dr. Stacy Sims, Dr. Mindy Pelz, Dr. Aviva Romm, Alisa Vitti, Dr. Jen Gunter, and Dr. Mary Claire Haver. Every answer cites its source. Free version includes 10 coach queries. PHASE-AWARE TIMER Recommended fasting windows pre-fill based on your current phase. Track active fasts. See progress at a glance. MEAL PHOTO INSIGHTS Snap a photo of what you're eating. Phasely identifies the foods, checks for inflammation markers, and ties insights back to your current phase. CYCLE TRACKING Log periods, see your phase forecast, and understand hormone curves through each part of the month. Visualize where you are now and what's coming. HEALTHKIT INTEGRATION Sync menstrual flow data with Apple Health for unified tracking. Never enter your period twice. GROUNDED, NOT GUESSED Phasely's recommendations come from 160+ peer-reviewed studies and clinical guidance from women's health specialists. Where experts disagree, Phasely shows you the camps and lets you decide. — BUILT WITH CARE — PRIVATE BY DEFAULT Your data stays yours. Export everything anytime. Delete your account and all data permanently with one tap. Apple Health data never leaves your device unless you choose to sync it. NOT MEDICAL ADVICE Phasely is educational. We surface research and frameworks but don't diagnose, prescribe, or replace your doctor. If something feels off, see a professional. NO ADS, NO TRACKING No third-party advertisers. No selling your data. No newsletter spam. Just the app. — WHO IT'S FOR — Phasely is designed for women aged 18+ who are cycling, perimenopausal, or postmenopausal. Whether you're new to fasting or experienced and ready to make it cycle-aware, Phasely meets you where you are. It is NOT appropriate for: anyone with current or past eating disorders, pregnant or nursing women, those with type 1 diabetes, anyone underweight, or anyone whose doctor has advised against fasting. The app screens for these during onboarding. — FROM THE FOUNDER — I built Phasely because I couldn't find a fasting app that treated women's bodies seriously. Every tool I tried was either a generic tracker with pink colors or a one-size-fits-all protocol that ignored my cycle entirely. Phasely is the app I wanted — grounded in real research, respectful of how women's hormones actually work, designed to support not control. — PRIVACY & SUPPORT — Privacy Policy: https://phasely.today/privacy Terms of Service: https://phasely.today/terms Medical Disclaimer: https://phasely.today/medical-disclaimer AI Safety Policy: https://phasely.today/ai-safety Support: hello@phasely.today Built in Zürich.

Screenshots

FastingLady4 screens
Phasely4 screens

Verdict

The call

The clearest difference is in-app purchases: Phasely at none against FastingLady's 3. FastingLady's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement 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. FastingLady sells 3 in-app purchases, starting at $1.99 per month. Phasely asks for nothing beyond the download.

UpkeepUpdate frequency

FastingLady ships an update weekly, Phasely monthly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
FastingLady versus Phasely: the parameters behind the verdict, then further details
ParameterFastingLadyPhasely
PriceFreeFree
Rating4.8 (26 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings26 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS16.615.1 — better
Further details — not scored
Size29 MB63 MB
Age rating4+17+
DeveloperLe HuangKarolina Bittmanova

In-app purchases

3 purchases

FastingLady

Subscriptions2
  • Monthly3 Days trial$1.991 Month
  • Yearly3 Days trial$9.991 Year
One-time1
  • Lifetime$24.99
None

Phasely

No in-app purchases

Questions

Is FastingLady free?
FastingLady is free to download, with in-app purchases available.
Is Phasely free?
Phasely is free to download, with no in-app purchases.
Do FastingLady or Phasely have ads?
Neither FastingLady nor Phasely shows ads.
Which is updated more often, FastingLady or Phasely?
FastingLady ships an update weekly, and Phasely monthly. Most recently, FastingLady was updated on October 24, 2026 and Phasely on October 7, 2026.

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