Comparison

Phases vs Flowly

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

Head to head
About

Phases

This app helps you understand and align your lifestyle with your natural hormonal phases. It provides insights into mood, energy, and cycle predictions to optimize productivity and self-care.

Highlights
  • Smart period and cycle tracking
  • Daily cycle syncing advice
  • Mood and energy insights logging
  • HealthKit integration
  • Irregular cycle support
  • On-device data privacy
  • Home and Lock Screen widgets
Features
Read full description

Live in Harmony with Your Cycle. Phases is more than just a period tracker. It is your personal guide to cycle syncing—the practice of aligning your lifestyle, work, and wellness with your hormonal phases. Whether you want to understand your mood insights, predict your ovulation window, or simply know why your energy levels shift, Phases provides the data you need to take control of your health. WHY CYCLE SYNCING? Your body moves through four distinct phases: Menstrual, Follicular, Ovulation, and Luteal. Each phase brings unique changes in energy, brain chemistry, and mood. Phases helps you identify these shifts so you can plan your life accordingly. KEY FEATURES: * SMART PERIOD TRACKING: Accurate predictions for your next period and menstrual cycle flow. * CYCLE SYNCING GUIDE: Daily advice on how to align your productivity and self-care with your current phase. * MOOD & ENERGY INSIGHTS: Log symptoms and moods to see patterns and receive personalized health tips. * HEALTHKIT INTEGRATION: Connect with Apple Health to see how your sleep, heart rate, and activity correlate with your cycle. * IRREGULAR CYCLE SUPPORT: Advanced logic to help you understand patterns even if your cycle isn't the standard 28 days. * PRIVACY FIRST: No accounts, no cloud storage. Your sensitive health data stays 100% on your device. * BEAUTIFUL WIDGETS: See your cycle status at a glance from your Home Screen or Lock Screen. OPTIMIZE YOUR LIFE: * Menstrual Phase: Focus on rest and reflection. * Follicular Phase: The time for new projects and creativity. * Ovulation Phase: Peak energy for socializing and communication. * Luteal Phase: Winding down and focusing on task completion. Stop guessing and start syncing. Download Phases today to transform the way you experience your cycle. Medical Disclaimer: Phases is for informational and personal tracking purposes only. It does not provide medical diagnoses or treatment advice. Always consult a qualified healthcare provider before making any medical decisions. Do not rely solely on this app to manage a medical condition. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Flowly

This app tracks your menstrual cycle, integrating biometric data like HRV and sleep from your Apple Watch to predict cognitive peaks, energy windows, and recovery needs. It offers personalized daily recommendations for work, nutrition, and movement based on your cycle phase.

Highlights
  • Predicts periods and cognitive peaks
  • Integrates Apple Watch HRV and sleep data
  • Personalized daily action recommendations
  • Tracks symptoms, mood, and energy
  • 5-dimension cognitive performance forecast
  • Privacy-focused local data storage
Features
Read full description

Flowly is the first cycle tracker built for performance. By combining your menstrual cycle data with real-time HRV, wrist temperature, and sleep quality from Apple Watch, Flowly predicts not just your next period — but your cognitive peak, energy windows, and recovery needs for every day of your cycle. WHAT MAKES FLOWLY DIFFERENT Unlike traditional period trackers, Flowly is built for women who want to understand how their hormones shape their focus, decision-making, creativity, and resilience — not just their fertility. CYCLE & PERIOD TRACKING • Predict your next period with personalized accuracy • Track irregular cycles with adaptive algorithms • Log symptoms, mood, energy, and flow • Sync with Apple Health for seamless data integration HRV & BIOMETRIC INSIGHTS (Apple Watch Required)---Works perfectly with or without an Apple Watch. • Read your Heart Rate Variability (HRV) daily • Monitor wrist skin temperature deviation (Series 8+ / Ultra) • Track sleep quality: deep sleep, REM, and total duration • Calibration mode: 7-day baseline for accurate temperature deviation COGNITIVE PERFORMANCE PREDICTION • 5-dimension radar: Focus · Decision · Creativity · Resilience · Communication • 7-day cognitive forecast based on your cycle phase + HRV • Daily S/A/B/C performance rating on your calendar • Identify your personal peak windows for high-stakes work SMART DAILY ACTIONS (307 personalized templates) • Phase-matched recommendations for work, movement, nutrition, and recovery • Quiet Mode: triggered automatically when HRV drops below your baseline • 4-7-8 breathing guide for stress recovery • Seed Syncing nutrition protocol by cycle phase APPLE WATCH INTEGRATION • Watch face complications: HRV, cycle day, temperature, energy score • Smart Stack card with daily phase summary • Morning check-in: 3-question daily log from your wrist • Ultra: one-tap anomaly marking with Action Button PRIVACY FIRST All data is stored locally on your device. No server uploads. No data selling. Ever. Note: Flowly is not a medical device and should not be used as contraception. Consult your healthcare provider for medical advice. Subscription Terms: https://10m.com.cn/doc/dance/Subscription_Terms_en.html Privacy Policy: https://10m.com.cn/doc/browser/Privacy_Policy_en.html User Agreement: https://10m.com.cn/doc/browser/Terms_of_Services_en.html

Screenshots

Phases4 screens
Flowly4 screens

Verdict

The call

Phases and Flowly are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Phases sells 3 in-app purchases, starting at $5.99 per 7 days and Flowly sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Phases ships an update fortnightly, Flowly every 10 days. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
Phases versus Flowly: the parameters behind the verdict, then further details
ParameterPhasesFlowly
PriceFreeFree
Rating3.3 (3 ratings) — better—
Positive reviews—66.7% of reviews
Number of ratings3 — better—
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.617 — better
Further details — not scored
Size39 MB13 MB
Age rating17+4+
DeveloperNuno LopesHOOROO NETWORK PTE. LTD.

Customer experience

Phases

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Flowly

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

3 purchases

Phases

Subscriptions3
  • Phases Pro Weekly7 Days trial$5.997 Days
  • Monthly Subscription7 Days trial$5.991 Month
  • Phases Pro Annual7 Days trial$29.991 Year
2 purchases

Flowly

Subscriptions2
  • Pro · Monthly7 Days trial$2.991 Month
  • Pro · Annual7 Days trial$17.991 Year

Questions

Is Phases free?
Phases is free to download, with in-app purchases available.
Is Flowly free?
Flowly is free to download, with in-app purchases available.
Do Phases or Flowly have ads?
Neither Phases nor Flowly shows ads.
Which is updated more often, Phases or Flowly?
Phases ships an update fortnightly, and Flowly every 10 days. Most recently, Phases was updated on October 31, 2026 and Flowly on October 31, 2026.

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