Comparison

MoonFlow vs Saare · Period Tracker

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

Head to head
About

MoonFlow

This app helps you track your menstrual cycle, ovulation, and pregnancy with a focus on privacy. It offers accurate predictions, daily logging of symptoms, and a pregnancy mode. All your data is stored locally on your device, ensuring it's never shared or sold.

Highlights
  • Accurate period and ovulation predictions
  • Daily symptom and mood logging
  • Pregnancy mode with week-by-week development
  • 100% offline data storage
  • App lock with PIN or biometrics
  • Stealth mode for calculator disguise
  • Data export to file
Features
Read full description

MoonFlow is the privacy-first period and pregnancy tracker designed to be simple, beautiful, and 100% trustworthy. Track your menstrual cycle, ovulation, and pregnancy journey without compromising your privacy. No accounts. No ads. No data harvesting. Just you and your flow. Whether you are tracking your period, trying to conceive, or following your pregnancy week-by-week, MoonFlow adapts to your body's changing needs. COMPLETE CYCLE TRACKING Understand your body better with a modern, elegant dashboard. - Accurate Predictions: Know exactly when your next period, ovulation day, and fertile window will start based on your history. - Sexy Calendar: A visually stunning monthly view with color-coded days for period, fertility, and ovulation. - Daily Logging: Track flow intensity (light, medium, heavy, disaster), spotting, cervical mucus, and more. - Symptom & Mood Tracker: Log PMS symptoms, mood swings, energy levels, and intimacy to discover patterns in your health. - Intimacy Logging: Track protected/unprotected sex to help with family planning or contraception awareness. PREGNANCY MODE Switch seamlessly to Pregnancy Mode and watch your baby grow. - Week-by-Week Development: Track your baby’s size and gestational age with beautiful visuals. - Due Date Countdown: Know exactly how many days are left until you meet your little one. - Trimester Tracking: See which trimester you are in and what to expect. - Smart "Late" Detection: If you're trying to conceive and your period is late, MoonFlow intelligently suggests switching modes. PRIVACY-FIRST (SERIOUSLY) In a world where apps sell your health data, MoonFlow is a safe haven. - No Account Required: Start using the app instantly. We don't ask for your email, phone number, or social login. - 100% Offline: Your data lives on your phone, not in the cloud. We cannot see, sell, or share your health information because we don't have it. - App Lock: Secure the app with your biometric face ID, fingerprint, or a PIN code. STEALTH MODE Need extra discretion? - Calculator Disguise: Enable Stealth Mode to turn the MoonFlow icon into a functional calculator. - Hidden Entry: The app only opens when you enter your secret PIN code. To everyone else, it's just a calculator. - Discreet Notifications: Reminders are silenced or masked to protect your privacy. INSIGHTS & REMINDERS - Smart Notifications: Get reminders for your coming period, fertile window, or daily log—only if you want them. - Cycle History: View all your past cycles and averages in one place. - Data Export: You own your data. Export your entire history to a file for backup or to share with your doctor. MOONFLOW PREMIUM MoonFlow is free to use forever. Premium unlocks: • Advanced Analytics: Dive deeper with detailed charts and trend insights. • Weight Tracking: Set goals, view progress, and visualize history with smart charts. • Cycle Tips: Daily lifestyle tips for energy, workouts, and nutrition to match your rhythm. • Medication Reminders: Custom schedules for vitamins, supplements, and birth control. • Partner Forecast: Share your estimated timeline for better planning together. • PDF Reports: Export your complete cycle and wellness logs for personal backup. • Home Screen Widgets: See your cycle status at a quick glance. • Custom Themes: Personalize your journal with premium styles and app icons. Why choose MoonFlow? Most period trackers are cluttered with ads, social networks, and confusing interfaces. MoonFlow is different. We believe your health data belongs to you. We built a tracker that is calm, private, and powerful. Download MoonFlow today and sync with your cycle, securely. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Saare · Period Tracker

Features
Read full description

# A period tracker that stays yours. Saare is a simple period tracker designed around one idea: **your cycle data belongs to you.** I built Saare because I wanted a tracker that was simple, private, and flexible. One where I could track the things that actually mattered to me — without accounts, ads, unnecessary features, or constant reminders. So I built it. ## PRIVATE BY DESIGN Saare stores your data on your phone. There’s no account to create, no sign-up, and no personal information to hand over. Your entries aren’t sent to a server. There are no ads, analytics, or third-party tracking. Your cycle data stays on your device. ## TRACK YOUR PERIOD Tap a day to record your flow, from spotting to heavy. Your cycle appears clearly on the calendar, so you can see it at a glance. Missed a few days? No problem. Add, remove, or edit entries whenever you want. Your past data is never locked. Predicted days are shown with a dashed line, so you can always tell the difference between **what you recorded and what Saare predicts**. ## TRACK WHAT MATTERS TO YOU The Day tab starts empty on purpose. Add the things you actually want to keep track of — cramps, mood, sleep, skin, headaches, or anything else. Use simple yes/no options, 1–5 scales, numbers, durations, notes, or your own set of choices. No forced check-ins. No streaks. No pressure. And if you stop using a tracker, you can archive it without losing your history. Bring it back whenever you want. ## SEE YOUR PATTERNS Saare turns your entries into useful patterns. See your average cycle length, average bleeding length, when your heaviest days tend to occur, and how your personal trackers change throughout your cycle. The more you track, the more there is to see. ## BASIC & PLUS **Basic — free** Everything you need for period tracking: * Calendar * Flow tracking * Past entries * Cycle predictions * Data export **Plus — €5.99 one-time** Everything in Basic, plus: * Custom trackers * Daily notes * Detailed statistics No subscription. No automatic renewal. **One payment, and Plus is yours.** Both plans are completely ad-free. ## YOUR DATA, YOUR DEVICE Export your data whenever you want. Saare doesn't require an account or keep a copy of your data on a server. Your entries stay with you and can be included in your phone's normal backup. **Your period is personal. Your data should be too.**

Screenshots

MoonFlow4 screens
Saare · Period Tracker3 screens

Verdict

The call

MoonFlow and Saare · Period Tracker are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. MoonFlow sells 3 in-app purchases, starting at $3.99 per month and Saare · Period Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
MoonFlow versus Saare · Period Tracker: the parameters behind the verdict, then further details
ParameterMoonFlowSaare · Period Tracker
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size176 MB2 MB
Age rating12+4+
DeveloperTarik Murat IslamWocherie OU

In-app purchases

3 purchases

MoonFlow

Subscriptions2
  • Monthly Premium3 Days trial$3.991 Month
  • Annual Premium7 Days trial$29.991 Year
One-time1
  • Lifetime Access$79.99
1 purchases

Saare · Period Tracker

One-time1
  • Saare Plus$4.99

Questions

Is MoonFlow free?
MoonFlow is free to download, with in-app purchases available.
Is Saare · Period Tracker free?
Saare · Period Tracker is free to download, with in-app purchases available.
Do MoonFlow or Saare · Period Tracker have ads?
Neither MoonFlow nor Saare · Period Tracker shows ads.

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