Comparison

Period Tracker by GP Apps vs Fasted Harmony

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

Head to head
About

Period Tracker by GP Apps

Easily track your menstrual cycles, predict future periods, and monitor fertility. Log symptoms, moods, and weight with detailed charts and customizable notes. Includes advanced modes for trying to conceive and pregnancy tracking, with privacy features and data backup.

Highlights
  • Period cycle tracking and prediction
  • Fertility and ovulation tracking
  • Symptom and mood logging
  • Weight and temperature tracking
  • Customizable notes and symptoms
  • Pregnancy mode and countdown
  • Data backup and export
Features
Read full description

Period Tracker, the easiest way to track your health! *Now supports HealthKit, 3DTouch, TouchID, portrait charts, Advanced TTC Mode (the easiest way to get pregnant by following the homepage timeline’s simple prompted instructions!), and Pregnancy Mode with articles and week-by-week images. Period Tracker is SIMPLE and CUTE. * Press a button at the start of your period every month. Period Tracker logs your dates and calculates the average of your past 3 months' menstrual cycles to predict the start date of your next period. * View your current and future period dates, ovulation and fertile days, moods, symptoms, weight, temp, and fertility notes in a simple month-view calendar. * Discreet iPhone icon simply reads "PTracker." Period Tracker is FILLED WITH FEATURES. * Take daily notes of menstrual symptoms including Spotting, Flow, Cramps, Headaches, Backaches, Bloating, Tender Breasts, and Body Aches! * Track your weight, temperature and moods (over 30+ moods to choose from!) * Add custom symptoms and moods * Charts! Beautiful, comprehensive and handy. Charts show weight, temp, symptoms, period length, cycle length, and more. * Backup/Restore your data with your online backup and restore account. (works across platforms) * Homescreen shows your predicted ovulation, eight day "fertile window,” and your cycle day. Great for trying to conceive. * Pregnancy mode activates countdown to baby's due date and week-by-week articles. * Protect your privacy with TOUCH ID or with a passcode option that is fast and easy. * Export your period dates and notes to email for doctor's visits. Period Tracker is loved by millions of users. MommaRed - "I really like this application. It is easy to use, easy to track and plan for upcoming events. The recent updates have made it even better. One of my favorite iPhone apps." Blanczz226 - "This is one of my favorite apps. I use it every month and it's extremely accurate. Worth the $ for sure" GeekSugar.com - "Period Tracker is the ultimate menstrual mentor. You enter in your info, and it tracks your cycles, letting you keep notes about your activities and well being, all the while using twee 'lil hearts .and flowers to denote important days." Celstemc - "One of my first apps and I am completely in love with it! Won't use another one like it!! Cute and easy to use!" Subscription Details By subscribing to the Period Tracker Patron program you receive additional features. Subscription purchased through the app will be charged to your iTunes account. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of $9.99. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. Terms of service: https://gpapps.com/support/eula/ Privacy policy: https://gpapps.com/support/privacy-policy/ Disclaimer: Period Tracker period and fertility forecasts may not be accurate and should not be used to prevent unwanted pregnancy. To forecast ovulation Period Tracker calculates 14 days before the projected start date of one's next period. Forecast accuracy depends on a number of factors including how regular one's cycle length is, when one actually ovulates during the cycle, and how many periods have been logged in the app. Anxiety, stress, diet, nutrition, exercise, environment, medications, age and other factors can also affect one's cycle from month to month. Please email comments and suggestions to supportgpa@gmail.com.

About

Fasted Harmony

This app syncs intermittent fasting windows with your menstrual cycle, optimizing fasting times based on hormonal phases. It offers cycle tracking, symptom logging, and AI-powered guidance to help you fast smarter and achieve better results.

Highlights
  • Phase-specific fasting windows (12-18 hrs)
  • Smart cycle tracking with predictions
  • AI Hormone Coach for personalized guidance
  • Symptom, mood, and energy logging
  • Weight trends overlaid on cycle phases
  • CSV data export
Features
Read full description

Your hormones are not on a 24-hour clock — so why is your fasting routine? Most fasting apps treat every single day the same. Your cycle is personal, and your energy, appetite, and wellbeing can feel different throughout the month. Fasted Harmony brings cycle tracking, fasting, nourishment, and movement together in one supportive plan. YOUR DAY, SYNCED Open Fasted Harmony each morning to "Your Day, Synced" — your personalized daily roadmap that unites your cycle phase, fasting targets, meals, and movement into one effortless view. See your current cycle context, a suggested fasting range, meals, and movement together. Predictions recalculate from your recent completed logs and show a likely range when timing varies. WHY WOMEN LOVE FASTED HARMONY: CYCLE-AWARE FASTING WINDOWS Say goodbye to rigid 16:8 schedules that leave you exhausted during your luteal phase. Fasted Harmony offers phase-aware fasting ranges and encourages you to shorten or skip a fast when hunger, symptoms, sleep, or recovery call for nourishment. HOME & LOCK SCREEN WIDGETS Glance at your current cycle day, phase, and fasting countdown right from your Home Screen or Lock Screen. Choose from gorgeous aesthetic themes like Soft Blush and Starry Night. LIVE ACTIVITIES & DYNAMIC ISLAND Keep tabs on your active fast in real time. Dynamic Island and Lock Screen tracking let you check your remaining fast time at a single glance without unlocking your phone. CYCLE-SYNCED WORKOUTS WITH INSTRUCTIONS Stop guessing how hard to push. Access tailored daily workouts matched to your energy — from energizing strength training during your follicular surge to restorative yoga and mobility when your body needs recovery. Every exercise includes step-by-step instructions and form cues. HORMONE-SUPPORTIVE RECIPES Explore wholesome recipes organized by cycle phase and filtered against your saved food preferences, dislikes, and allergens. GLP-1 & PEPTIDE SUPPORT Optional GLP-1 and peptide tools focus on nourishment, protein, hydration, and private logging without medication or dosing advice. Secure exports: Complete Data Archive (JSON) and Clinician Health Summary (PDF). Private multi-cycle symptom patterns in recaps. Cross-device fast sync keeps your active fast and goal aligned on signed-in devices. Premium weekly meal planner with compatible recipe filtering, one shopping list, optional AI creation, and PDF export. PRIVATE BY DESIGN Your health data is encrypted and never sold. Ever. Download Fasted Harmony and start fasting in flow with your body — not against it. SUBSCRIPTION INFO: • Premium Monthly: $4.99/month • Premium Yearly: $45.99/year (save 23%) • Payment is charged to your Apple ID at confirmation of purchase • Subscription auto-renews unless canceled at least 24 hours before the end of the current period • Your account is charged for renewal within 24 hours prior to the end of the current period • Manage or cancel in your App Store account settings • Any unused portion of a free trial is forfeited upon purchase of a subscription Privacy Policy: https://fastedharmony.larvottoventures.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Custom Terms: https://fastedharmony.larvottoventures.com/terms DISCLAIMER: Fasted Harmony provides cycle and fasting guidance for wellness and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before changing your fasting routine — especially if you are pregnant, breastfeeding, under 18, have a history of disordered eating, or have a medical condition. AI-generated guidance may not always be accurate.

Screenshots

Period Tracker by GP Apps4 screens
Fasted Harmony4 screens

Verdict

The call

The clearest difference is ads: Fasted Harmony at none against Period Tracker by GP Apps's shown. Fasted Harmony also leads on update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.8). Period Tracker by GP Apps's advantage is ratings volume (74K vs 1). On price, in-app purchases, monetization model 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. Period Tracker by GP Apps sells 1 in-app purchase, starting at $9.99 per year and Fasted Harmony sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Fasted Harmony holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Period Tracker by GP Apps has 74K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Period Tracker by GP Apps ships an update every 2 months, Fasted Harmony every 2 weeks. Both last shipped on October 14, 2026.

Scorecard4 real differences · 6 level
Period Tracker by GP Apps versus Fasted Harmony: the parameters behind the verdict, then further details
ParameterPeriod Tracker by GP AppsFasted Harmony
PriceFreeFree
Rating4.8 (74K ratings)5.0 (1 ratings) — better
Positive reviews91.1% of reviews—
Number of ratings74K — better1
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size64 MB134 MB
Age rating12+12+
DeveloperGP AppsLarvotto Ventures LLC

Customer experience

Period Tracker by GP Apps

All ratings74,260 ratings
Positive96.9%
Neutral1.5%
Negative1.6%
Written reviews1,857 reviews
Positive91.1%
Neutral2.7%
Negative6.1%

Fasted Harmony

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Period Tracker by GP Apps

Reported bugs

3 issues
  • Period start/end dates not saving correctly
  • Ovulation predictions often inaccurate
  • Crashes or freezes when logging data

Requested features

4 requests
  • Add option to track irregular cycles
  • Improve data backup and sync across devices
  • Provide more customization options for layout and themes
  • Integrate with other health tracking apps

Fasted Harmony

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Period Tracker by GP Apps

Subscriptions1
  • Annual Member14 Days trial$9.991 Year
2 purchases

Fasted Harmony

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly7 Days trial$45.991 Year

Questions

Is Period Tracker by GP Apps free?
Period Tracker by GP Apps is free to download, with in-app purchases available.
Is Fasted Harmony free?
Fasted Harmony is free to download, with in-app purchases available.
Which has better reviews, Period Tracker by GP Apps or Fasted Harmony?
Fasted Harmony is rated higher. Period Tracker by GP Apps averages 4.8 out of 5 from 74K ratings, while Fasted Harmony averages 5.0 from 1 ratings.
Do Period Tracker by GP Apps or Fasted Harmony have ads?
Period Tracker by GP Apps shows ads; Fasted Harmony does not.
Which is updated more often, Period Tracker by GP Apps or Fasted Harmony?
Period Tracker by GP Apps ships an update every 2 months, and Fasted Harmony every 2 weeks. Most recently, Period Tracker by GP Apps was updated on October 14, 2026 and Fasted Harmony on October 14, 2026.

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