Comparison

FEMM Period Ovulation Tracker vs NFP Tracker

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

NFP Tracker

Features
Read full description

NFP Tracker is a privacy-first charting app for individuals or couples practicing natural family planning. Log the observations you already track each day in one simple place: • Bleeding • Monitor readings • Mucus observations • Temperature • Symptoms • Notes Designed to replace paper charts and spreadsheets, NFP Tracker helps you keep consistent records and review your cycle history over time. Features: • Daily observation tracking • Shared access for spouses • Calendar and cycle history views • Reminders to log observations • CSV and PDF export options • Support for multiple NFP approaches, including Marquette, Creighton, Billings, and sympto-thermal tracking NFP Tracker provides educational summaries based on the data you enter. It is intended for tracking and recordkeeping only and does not provide medical advice, diagnosis, or treatment. Consult a licensed clinician or certified instructor for interpretation and guidance. NFP Tracker Terms of Use: https://nfptracker.com/terms NFP Tracker Privacy Policy: https://nfptracker.com/privacy Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FEMM Period Ovulation Tracker4 screens
NFP Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: FEMM Period Ovulation Tracker at none against NFP Tracker's 2. NFP Tracker's advantage is update cadence (every 5 days vs every 4 months). 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. NFP Tracker sells 2 in-app purchases, starting at $9.99 per month. FEMM Period Ovulation Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

FEMM Period Ovulation Tracker ships an update every 4 months, NFP Tracker every 5 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
FEMM Period Ovulation Tracker versus NFP Tracker: the parameters behind the verdict, then further details
ParameterFEMM Period Ovulation TrackerNFP Tracker
PriceFreeFree
Rating4.8 (4.1K ratings) — better—
Positive reviews65.3% of reviews—
Number of ratings4.1K — better—
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size27 MB29 MB
Age rating4+17+
DeveloperFEMM FoundationMitchell Fisher

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

NFP Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

FEMM Period Ovulation Tracker

No in-app purchases

2 purchases

NFP Tracker

Subscriptions2
  • Access (monthly)$9.991 Month
  • Access (yearly)$64.991 Year

Questions

Is FEMM Period Ovulation Tracker free?
FEMM Period Ovulation Tracker is free to download, with no in-app purchases.
Is NFP Tracker free?
NFP Tracker is free to download, with in-app purchases available.
Do FEMM Period Ovulation Tracker or NFP Tracker have ads?
Neither FEMM Period Ovulation Tracker nor NFP Tracker shows ads.
Which is updated more often, FEMM Period Ovulation Tracker or NFP Tracker?
FEMM Period Ovulation Tracker ships an update every 4 months, and NFP Tracker every 5 days. Most recently, FEMM Period Ovulation Tracker was updated on October 26, 2026 and NFP Tracker on October 25, 2026.

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