Comparison

FEMM Period Ovulation Tracker vs Phases

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

Head to head
About

FEMM Period Ovulation Tracker

This app helps women track their menstrual cycles, symptoms, and fertility. It offers insights into hormonal health and connects users with healthcare professionals for personalized care and education.

Highlights
  • Cycle and period tracking
  • Symptom logging (physical & emotional)
  • Daily data input reminders
  • Cycle pattern charts
  • Medication tracking
  • Shareable health charts
  • Hormone knowledge base
Features
Read full description

Are you looking to track your menstrual cycles and symptoms, get pregnant or avoid pregnancy? The FEMM app is more than just a period tracker: it provides you with cutting edge science that helps you keep track of your health, understand what is going on with your body, flag potential issues and connect with a network of doctors and nurses to provide you the best health care. We’re a new revolution in women’s health! Empower yourself and be an active player in your health care with our easy to use app! FEATURES * Easy data input to track your cycle or period. * Track physical and emotional symptoms to better diagnose potential health problems. * Daily reminder. Never forget to input your data through our app's notification feature. * View several Charts on a screen to help you understand your patterns. * Track medications you are currently taking. * Email and/or print your charts to share with your doctor, friends or family * Various view styles let you see and interpret your cycles better: calendar view, chart view and the detailed chart view, which let you see your symptoms. * Understand your health and the interplay of hormones in your body through our knowledge base. CONTACT OUR TEAM TO HELP YOU FIND: * a FEMM-trained doctor or FEMM health center near you * a FEMM teacher who can teach you how to chart and understand the interplay of hormones in your body

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/

Screenshots

FEMM Period Ovulation Tracker4 screens
Phases4 screens

Verdict

The call

The clearest difference is in-app purchases: FEMM Period Ovulation Tracker at none against Phases's 3. FEMM Period Ovulation Tracker also leads on ratings volume (4.1K vs 2) and rating (4.8 vs 4.5). Phases's advantage is update cadence (fortnightly vs every 4 months). On price, ads and device support 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. Phases sells 3 in-app purchases, starting at $5.99 per 7 days. FEMM Period Ovulation Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FEMM Period Ovulation Tracker holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: FEMM Period Ovulation Tracker has 4.1K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

FEMM Period Ovulation Tracker ships an update every 4 months, Phases fortnightly. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.

Scorecard6 real differences · 4 level
FEMM Period Ovulation Tracker versus Phases: the parameters behind the verdict, then further details
ParameterFEMM Period Ovulation TrackerPhases
PriceFreeFree
Rating4.8 (4.1K ratings) — better4.5 (2 ratings)
Positive reviews65.3% of reviews—
Number of ratings4.1K — better2
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size26 MB39 MB
Age rating4+17+
DeveloperFEMM FoundationNuno Lopes

Customer experience

FEMM Period Ovulation Tracker

All ratings3,860 ratings
Positive95.1%
Neutral2.2%
Negative2.7%
Written reviews245 reviews
Positive65.3%
Neutral13.1%
Negative21.6%

Phases

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

Bugs and requests

FEMM Period Ovulation Tracker

Reported bugs

4 issues
  • App crashes on opening after iOS updates
  • Date/cycle tracking gets mixed up or stuck
  • Symptom/observation data not saving properly
  • Analysis/charting features not functioning as expected

Requested features

6 requests
  • Add option to track seminal fluid observations
  • Integrate with Apple Health for seamless data sync
  • Expand mood/emotion tracking options
  • Improve date/cycle navigation and data entry
  • Provide better postpartum/breastfeeding support
Show 1 more
  • Offer calendar view in addition to chart view

Phases

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

FEMM Period Ovulation Tracker

No 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

Questions

Is FEMM Period Ovulation Tracker free?
FEMM Period Ovulation Tracker is free to download, with no in-app purchases.
Is Phases free?
Phases is free to download, with in-app purchases available.
Which has better reviews, FEMM Period Ovulation Tracker or Phases?
FEMM Period Ovulation Tracker is rated higher. FEMM Period Ovulation Tracker averages 4.8 out of 5 from 4.1K ratings, while Phases averages 4.5 from 2 ratings.
Do FEMM Period Ovulation Tracker or Phases have ads?
Neither FEMM Period Ovulation Tracker nor Phases shows ads.
Which is updated more often, FEMM Period Ovulation Tracker or Phases?
FEMM Period Ovulation Tracker ships an update every 4 months, and Phases fortnightly. Most recently, FEMM Period Ovulation Tracker was updated on September 25, 2026 and Phases on September 15, 2026.

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