Comparison

ZoeFlow vs CyclePrivate

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

Head to head
About

ZoeFlow

Features
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ZoeFlow – Period Tracker, Ovulation Tracker & Fertility Calendar ZoeFlow is a smart, accurate, and easy-to-use period tracker, ovulation tracker, fertility tracker, and pregnancy calendar designed to help you understand your menstrual cycle and reproductive health. Whether you want to track your period, predict ovulation, monitor fertility, or plan pregnancy, ZoeFlow gives you reliable predictions, daily insights, and helpful reminders - all in one private app. Period Tracker & Menstrual Cycle Calendar Track your period cycle with confidence using ZoeFlow’s advanced period tracker and menstrual calendar. • Track period dates and cycle length • Know your current cycle day instantly • See days remaining until your next period • Get accurate period predictions and reminders • Visual calendar for period, fertile, and ovulation days ZoeFlow’s period calculator learns from your cycle history to improve predictions over time. Ovulation Tracker & Fertility Predictor Understand your fertile window and ovulation timing using ZoeFlow’s intelligent ovulation tracker and fertility calculator. • Estimated ovulation day prediction • Fertile window visualization • Pregnancy chance indicators • Fertility insights based on your cycle Whether you’re trying to conceive or avoid pregnancy, ZoeFlow helps you stay informed about your fertility. Daily Cycle Insights & Symptom Tracker Track how your body changes during each menstrual phase. • Log symptoms, mood, discharge, and notes • Track hormonal phases and energy levels • Understand your daily body signals • Build awareness of your menstrual health ZoeFlow transforms daily tracking into meaningful reproductive health insights. Cycle History, Reports & Analysis Review your past menstrual cycles and identify patterns easily. • Compare cycle lengths and period duration • Identify irregular or changing cycles • Color-coded reproductive health calendar • Timeline view of your cycle history Your data helps ZoeFlow provide smarter cycle predictions over time. Smart Reminders & Health Tools Stay organized with built-in reminders and notifications. • Period reminders • Ovulation alerts • Medicine reminders • Daily health logging and notes Everything stays private, secure, and accessible only to you. Built-in Women’s Health Calculators ZoeFlow includes essential calculators for fertility and pregnancy planning: • Ovulation Calculator • Pregnancy Calculator • Due Date Calculator • Implantation Calculator • IVF & Ultrasound Due Date Tools • Ideal Weight Calculator From cycle tracking to pregnancy planning, ZoeFlow supports every stage of your journey. Learn with Women’s Health Guides Read helpful articles about menstrual health, fertility, pregnancy, and hormones. • Fertility awareness education • Pregnancy wellness tips • Cycle health guidance • Hormonal balance insights ZoeFlow is more than a period tracker - it’s your complete women’s health companion. Why Choose ZoeFlow? • Accurate period tracker and ovulation predictor • Personalized fertility insights • Clean, modern, and easy interface • Private and secure tracking • Smart predictions powered by your cycle data ZoeFlow – Period Tracker, Ovulation Tracker & Fertility Calendar Download ZoeFlow today to track your period, predict ovulation, monitor fertility, and understand your body with confidence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CyclePrivate

Features
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Your cycle is personal. CyclePrivate keeps it that way. Built for women who want powerful cycle tracking without sacrificing privacy. No account. No signup. No login. Just open the app and start tracking immediately. PRIVATE BY DESIGN - All data stored securely and locally on your device - Face ID, Touch ID, and PIN lock protection - No account, email, or login required, ever - 100% ad-free, no data sharing, no trackers FREE CYCLE TRACKING FEATURES - Log period start and end dates in one tap - Accurate period predictions based on your cycle history - Ovulation day and fertile window calculation - Visual calendar showing past and upcoming cycles - Daily logging for basic moods and standard symptoms (cramps, bloating, fatigue, headache, etc.) - Smart local reminders (notifies you before your next period begins) CYCLEPRIVATE PREMIUM: UNLOCK DEEPER INSIGHTS Upgrade to CyclePrivate Premium to unlock advanced tools and customization to better understand your body: 1. UNLIMITED CUSTOM SYMPTOMS & TAGS Personalize your tracking! Create and log custom tags for unique symptoms, moods, medications, workouts, or notes that matter to you. 2. ADVANCED CHARTS & TREND ANALYSIS Go beyond basic tracking. Get detailed visual charts showing cycle length trends, mood patterns over time, and average cycle analytics to understand your health patterns. 3. DOCTOR-READY PDF HEALTH REPORTS Export your complete cycle, symptom, and mood history into a clean, professional PDF report. Share it directly with your doctor during visits. 4. PRIVATE PARTNER SYNCHRONIZATION Share your cycle phase, fertile window, and mood predictions with your partner securely and privately, keeping them in the loop. YOUR PRIVACY. YOUR CHOICE. We built CyclePrivate with one core belief: Your health data belongs to you. Not to advertisers. Not to cloud servers. Not to anyone else. Everything you log stays on your phone, protected by biometrics and visible only to you. SUBSCRIPTION INFORMATION: CyclePrivate Premium offers two auto-renewing subscription options: - Monthly Premium Access - Yearly Premium Access (Save 50% compared to the monthly plan) Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You can manage your subscriptions in Account Settings after purchase. Terms of Service: https://www.navelosoftware.com/projects/cycle-private/terms-and-conditions Privacy Policy: https://www.navelosoftware.com/projects/cycle-private/privacy-policy Download CyclePrivate today, your most private health companion.

Screenshots

ZoeFlow4 screens
CyclePrivate4 screens

Verdict

The call

The clearest difference is update cadence: CyclePrivate at every 4 days against ZoeFlow's every 8 days. 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. ZoeFlow sells 2 in-app purchases, starting at $1.99 per month and CyclePrivate sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ZoeFlow ships an update every 8 days, CyclePrivate every 4 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 5 level
ZoeFlow versus CyclePrivate: the parameters behind the verdict, then further details
ParameterZoeFlowCyclePrivate
PriceFreeFree
Update frequencyEvery 8 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size124 MB53 MB
Age rating12+4+
DeveloperBLOOM IT TECHNavelo Software

In-app purchases

2 purchases

ZoeFlow

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$12.991 Year
2 purchases

CyclePrivate

Subscriptions2
  • Premium Monthly Access$4.991 Month
  • Premium Yearly Access$29.991 Year

Questions

Is ZoeFlow free?
ZoeFlow is free to download, with in-app purchases available.
Is CyclePrivate free?
CyclePrivate is free to download, with in-app purchases available.
Do ZoeFlow or CyclePrivate have ads?
Neither ZoeFlow nor CyclePrivate shows ads.
Which is updated more often, ZoeFlow or CyclePrivate?
ZoeFlow ships an update every 8 days, and CyclePrivate every 4 days. Most recently, ZoeFlow was updated on October 25, 2026 and CyclePrivate on October 28, 2026.

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