Comparison

Tarn. vs Period Tracker Cycle Ovulation

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

Head to head
About

Tarn.

Features
Read full description

A private health journal that puts your privacy first. YOUR DATA, YOUR DEVICE Everything you log stays on your phone. No accounts. No cloud. No servers. Your health data is encrypted with a PIN only you know. SIMPLE TRACKING • Log daily entries with minimal effort • Track patterns over time • View predictions based on your history • Add notes and custom symptoms BUILT FOR PRIVACY • All data encrypted on your device • No internet connection required • No analytics or tracking • Open source - verify our claims yourself SECURE BY DESIGN • PIN protection with automatic data protection • Optional safety PIN for emergencies • Choose your app icon for discretion Whether you're tracking for health awareness, planning purposes, or personal records, Tarn gives you a simple, private way to understand your patterns without compromising your data. No subscriptions. No ads. No data collection. Just a journal that respects your privacy.

About

Period Tracker Cycle Ovulation

Features
Read full description

Medical Disclaimer: This app is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Information provided is for educational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider. Period Tracker: Cycle & Ovulation is a simple, private, and powerful menstrual health app designed for everyday cycle logging — with zero compromises on your privacy. No account. No cloud syncing. No data sharing. Everything stays on your device. Cycle Calendar Visualize your entire menstrual cycle at a glance. See period days, fertile windows, and estimated ovulation days clearly marked on an intuitive calendar. Period Logging Record your period start and end dates, flow intensity (light, medium, heavy), and cycle details. Build an accurate cycle history effortlessly. Ovulation & Fertility Tracking Based on your personal cycle history, the app estimates your ovulation day and fertile window so you're always informed about your body. Symptoms & Mood Tracking Log daily symptoms like cramps, bloating, headaches, and fatigue. Track your mood patterns to understand how your cycle affects how you feel. Health Logs Record your weight, BMI, and personal health notes. Spot patterns between your physical health and your menstrual cycle over time. Cycle Insights Review your average cycle length, cycle history, and trends. The more you log, the smarter your predictions become. Reminders & Medication Tracking Set local notifications to remind you when your period is due or when to take medications — all without needing an internet connection. Multiple Profiles Manage cycle tracking for multiple people in one app. Perfect for personal use or supporting a family member. Complete Privacy No account required No internet connection needed No personal data collected or shared All data stored locally on your device You are always in full control Period Tracker: Cycle & Ovulation — because your health data is yours alone. Download now and start tracking your cycle with confidence. Privacy Policy: https://medicinegeniusx1.blogspot.com/2026/02/privacy-policy.html Terms of Use: https://medicinegeniusx1.blogspot.com/2026/02/terms-and-conditions.html

Screenshots

Tarn.4 screens
Period Tracker Cycle Ovulation4 screens

Verdict

The call

The clearest difference is ads: Tarn. at none against Period Tracker Cycle Ovulation's shown. Period Tracker Cycle Ovulation's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Ā· 4 level
Tarn. versus Period Tracker Cycle Ovulation: the parameters behind the verdict, then further details
ParameterTarn.Period Tracker Cycle Ovulation
PriceFreeFree
Update frequency—Every 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size42 MB35 MB
Age rating4+4+
Developersuite 110 llcDisha Thummar

In-app purchases

None

Tarn.

No in-app purchases

None

Period Tracker Cycle Ovulation

No in-app purchases

Questions

Is Tarn. free?
Tarn. is free to download, with no in-app purchases.
Is Period Tracker Cycle Ovulation free?
Period Tracker Cycle Ovulation is free to download, with no in-app purchases.
Do Tarn. or Period Tracker Cycle Ovulation have ads?
Period Tracker Cycle Ovulation shows ads; Tarn. does not.

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