Comparison

Period Tracker vs Corela

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

Head to head
About

Period Tracker

This app helps you understand your body by tracking your menstrual cycle, predicting ovulation, and logging symptoms. It offers gentle reminders and personalized insights to make managing your cycle easier.

Highlights
  • Log period, flow, and symptoms
  • Ovulation and fertile window prediction
  • Cycle prediction and pattern spotting
  • Track emotions, energy, stress, and notes
  • Gentle reminders for periods and ovulation
  • Personalized insights
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

About

Corela

Features
Read full description

Corela is your daily compass for emotional clarity and self-awareness. Designed specifically for fast, effortless check-ins, Corela replaces lengthy journaling with an intuitive 5-Second Micro-Tracking methodology. Understand how your daily habits, sleep, screen time, and work pressure shape your mental wellbeing—all while keeping your personal data 100% offline and private on your device. KEY FEATURES • 5-Second Micro-Tracking: Log your current mood and active life factors in just 2 taps. No writing required. • 2D Energy & Valence Mood Matrix: Identify subtle emotional states based on validated psychological models (Joy, Calm, Stress, Fatigue, Anger, Anxiety). • Correlation & Trigger Engine: Discover clear cause-and-effect links between your daily habits (caffeine, sleep, exercise, social time) and your mood shifts. • True Dark Mode (OLED): High-contrast, eye-friendly design that conserves battery and reduces cognitive overload during night check-ins. • 100% Privacy by Design: Your thoughts and logs stay strictly on your phone. No cloud trackers, no account mandatory, zero data harvesting. • Clinical PDF Export: Generate comprehensive monthly reports with circadian charts, mood stability scores, and habit correlations to share with your therapist or doctor. • Customizable Daily Reminders: Gentle local notifications scheduled to match your natural routine. Take control of your emotional wellbeing today. Be present. Be in control with Corela. Disclaimer: Corela is a self-care and habit-tracking tool. It does not provide medical or psychiatric diagnosis or treatment. Always consult a qualified healthcare professional for mental health concerns. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1PhZ0F1MqREQgXIIgP5vEbxxd7MtlXvW2-gH4iiOHGEo/edit?usp=sharing

Screenshots

Period Tracker4 screens
Corela4 screens

Verdict

The call

The clearest difference is update cadence: Corela at every 2 days against Period Tracker's fortnightly. On price, ads, in-app purchases 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 sells 1 in-app purchase, starting at $29.99 per year and Corela sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Period Tracker ships an update fortnightly, Corela every 2 days. The most recent releases landed on November 12, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
Period Tracker versus Corela: the parameters behind the verdict, then further details
ParameterPeriod TrackerCorela
PriceFreeFree
Rating5.0 (12 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings12 — better—
Update frequencyFortnightlyEvery 2 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size53 MB75 MB
Age rating12+4+
DeveloperRafiki AppsDaniel Borges

In-app purchases

1 purchases

Period Tracker

Subscriptions1
  • Ruby Premium7 Days trial$29.991 Year
2 purchases

Corela

Subscriptions1
  • Acesso Anual7 Days trial$9.991 Year
One-time1
  • Acesso Vitalício$29.99

Questions

Is Period Tracker free?
Period Tracker is free to download, with in-app purchases available.
Is Corela free?
Corela is free to download, with in-app purchases available.
Do Period Tracker or Corela have ads?
Both Period Tracker and Corela show ads.
Which is updated more often, Period Tracker or Corela?
Period Tracker ships an update fortnightly, and Corela every 2 days. Most recently, Period Tracker was updated on November 12, 2026 and Corela on October 28, 2026.

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