Comparison

Period tracker, calendar vs Period Tracker

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

Head to head
About

Period tracker, calendar

This app helps you track your menstrual cycle, predict periods and ovulation, and plan for pregnancy. It offers customizable reminders, a detailed calendar, and statistics to monitor your cycle health. It also includes a pregnancy mode to estimate due dates and track weeks of gestation.

Highlights
  • Accurate period and ovulation predictions
  • Fertile and safe days calculator
  • Calendar with symptoms and predictions
  • Pregnancy planning mode
  • Period and ovulation reminders
  • Birth control reminders
  • Pregnancy mode with due date estimation
Features
Read full description

Period tracker, calendar is a convenient, easy and user-friendly app for control over menstrual cycles Main features: - Accurate predictions of period and ovulation, - Fertile (with high chance of pregnancy) and safe days calculator, - Convenient calendar with symptoms and period predictions, - Easy switching between cycle tracking and pregnancy planning modes based on your current needs, - Pregnancy planning mode with percentage probabilities of pregnancy, - Illustrative statistics for past period cycles, - Period, ovulation reminders, - Reminders for different types of birth control, - Pregnancy mode, - Helpful information and answers to frequently asked questions (FAQ), - Choice of theme colors, - Password personal data protection, - Data recovery on new device Period tracker will help you track your menstrual cycle, calculate ovulation days and will highlight fertile and safe days in the calendar. Period predictions are automatically updating based on data you enter providing high accuracy of period predictions even for women with irregular cycles. Intuitive and uncluttered interface lets you enter necessary data quickly and easily adjust the app as you see fit. All you have to do is answer a few short questions, and Period tracker will take care of the rest: it will make accurate predictions of period, calculate days of ovulation, highlight fertile and safe days with different colors in the calendar. It has never been easier to log periods and add symptoms: just a few clicks, and all the information on your condition is saved in Period tracker. You can easily switch between cycle tracking and pregnancy planning modes to get the most relevant information. If you get pregnant you will find our Pregnancy mode very useful: the application will estimate your due date (EDD), will number weeks of pregnancy and will keep all the important information for you and your obstetrician-gynecologist. Period tracker will also remind you of menstruation start and end, ovulation days as well as will notify you in case your period is late. You can set reminders for chosen type of birth control and won’t have to worry about forgetting or getting confused: the app will automatically take into account necessary contraceptive pill-free periods, will remind you about vaginal ring, etc. You can use a convenient calendar with menstrual period days highlighted in different colors depending on the phase of cycle to plan your vacations and trips faster. To make control over cycles even easier Period tracker graphically shows cycles statistics, representing cycle length and period length for each month in charts. Period tracker has a neutral icon for home screen, provides you an opportunity to password protect your personal data to make sure that only you have full access to the app. And to make sure you do not lose any data after changing your device Period tracker has a data recovery option for registered users.

About

Period Tracker

This app helps you track your menstrual cycle, predict ovulation, and log symptoms. It offers personalized insights and gentle reminders to help you understand your body better. Designed for simplicity and privacy, it's a comprehensive tool for managing your reproductive health.

Highlights
  • Menstrual cycle tracking
  • Ovulation prediction
  • Period and flow logging
  • Symptom and emotion tracking
  • Personalized insights
  • Gentle reminders
Read full description

Meet Ruby – your simple, smart, and free period tracker. Whether you want to track your menstrual cycle, get accurate ovulation predictions, or simply have a clue about your period, Ruby makes it easy to understand your body. Think of it as having Aunt Flo, Aunt Ruby, and your own personal cycle tracker all in one app. With Ruby, you can: - Log your period, flow, and symptoms with just a tap - Use our ovulation tracker to know your most fertile days - Predict cycles with a free period tracker that adapts to you - Track emotions, energy, stress, and notes in one place - Get gentle reminders for upcoming periods, ovulation, and fertile windows Why choose Ruby? - Simple & private – Easy to use, built with privacy in mind. - Your cycle, your way – From teens starting their first period, to women tracking fertility, pregnancy, or perimenopause. - More than a calendar – Ruby helps you spot patterns, manage PMS, and make your cycle feel less of a mystery. How Ruby Stands Out - Have a lively cycle every month with personalized insights. - Finally, an app that helps you truly have a clue about your period. - Forget “my cycle” being hard to remember—Ruby keeps it all logged for you. It's just a clean free period app experience. Privacy policy: https://bit.ly/rafiki-privacy-policy Terms of use: https://bit.ly/rafiki-terms-of-service

Screenshots

Period tracker, calendar4 screens
Period Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Period Tracker at 100% against Period tracker, calendar's 59%. Period Tracker also leads on rating (5.0 vs 4.5) and monetization model (free vs free with in-app purchases). Period tracker, calendar's advantage is ratings volume (283 vs 3) and iOS requirement (11.2 vs 17.0). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Period Tracker holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Period tracker, calendar has 283 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 59% of Period tracker, calendar's written reviews are positive against 100% of Period Tracker's.

UpkeepUpdate frequency

Period tracker, calendar ships an update every 3 weeks, Period Tracker every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Period tracker, calendar versus Period Tracker: the parameters behind the verdict, then further details
ParameterPeriod tracker, calendarPeriod Tracker
PriceFreeFree
Rating4.5 (283 ratings)5.0 (3 ratings) — better
Positive reviews58.8% of reviews100.0% of reviews — better
Number of ratings283 — better3
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.2 — better17.0
Further details — not scored
Size68 MB47 MB
Age rating12+12+
DeveloperMarina BerezinaRafiki Apps LLC

Customer experience

Period tracker, calendar

All ratings279 ratings
Positive86.4%
Neutral7.9%
Negative5.7%
Written reviews51 reviews
Positive58.8%
Neutral5.9%
Negative35.3%

Period Tracker

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Period tracker, calendar

No in-app purchases

None

Period Tracker

No in-app purchases

Questions

Is Period tracker, calendar free?
Period tracker, calendar is free to download, with no in-app purchases.
Is Period Tracker free?
Period Tracker is free to download, with no in-app purchases.
Which has better reviews, Period tracker, calendar or Period Tracker?
Period Tracker is rated higher. Period tracker, calendar averages 4.5 out of 5 from 283 ratings, while Period Tracker averages 5.0 from 3 ratings.
Do Period tracker, calendar or Period Tracker have ads?
Both Period tracker, calendar and Period Tracker show ads.
Which is updated more often, Period tracker, calendar or Period Tracker?
Period tracker, calendar ships an update every 3 weeks, and Period Tracker every 2 weeks. Most recently, Period tracker, calendar was updated on October 27, 2026 and Period Tracker on October 25, 2026.

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