Comparison

Ovulation Fertility Tracker vs DotDiary

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

Head to head
About

Ovulation Fertility Tracker

This smart and private tool helps track menstrual cycles, predict ovulation, and support fertility goals with AI-powered insights. It offers intuitive logging of symptoms and moods, with custom reminders for key events. Designed for all cycle types, it provides reliable, data-driven guidance for reproductive health awareness.

Highlights
  • AI-based ovulation and fertile window predictions
  • Period tracking with cycle start and end dates
  • Symptom, mood, and discharge logging
  • Pregnancy planning support
  • Customizable event reminders
  • Private and secure local data storage
Features
Read full description

Ovulation Fertility Tracker is a smart, private, and easy-to-use tool designed to help you track your menstrual cycle, understand your ovulation patterns, and support your fertility goals. With advanced AI-powered predictions and personalized insights, it adapts to your unique cycle—whether it’s regular or irregular. Built for women at every life stage, the app offers intuitive tracking, accurate ovulation forecasts, and discreet health management in one place. Whether you're trying to conceive, monitoring symptoms, or simply learning more about your body, this app supports you with reliable, data-driven guidance. Core Features: - Period tracking with cycle start and end dates - AI-based ovulation and fertile window predictions - Symptom, mood, and discharge logging - Pregnancy planning support - Custom reminders for period, ovulation, and other key events - Private and secure use with no login required - Designed for all cycle types, including irregular periods You can use the app to keep a detailed record of your health, identify patterns, and feel confident in your cycle awareness. All of your data is stored locally on your device and is never shared without your consent. This app is suitable for menstruating individuals of all ages—from first period to perimenopause—and provides a science-based, non-intrusive way to stay informed about your reproductive health. Disclaimer: This app is intended for informational purposes only and does not provide medical advice. Always consult a qualified healthcare provider for any medical concerns. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DotDiary

Features
Read full description

DotDiary is a private period and cycle tracker that keeps your data where it belongs — in Apple Health on your iPhone. No account. No ads. No tracking. No subscription. Most trackers send your most personal data to their servers. DotDiary doesn't. Everything you log — periods, symptoms, fertility signs — is saved straight into Apple Health. DotDiary keeps no copy, has no login, and makes no network calls. Delete the app and your data stays safe in Health. WHY DOTDIARY • Private by design — your cycle never leaves your phone • No account, and no ads, ever • A one-time purchase for Pro — never a subscription • Calm, clean, and discreet TRACK WHAT MATTERS • Log your period with a single tap • Predictions with an honest confidence range — never falsely precise • Symptoms, moods, and fertility signs • A private journal note for any day • A calendar and trends view of your whole history CHANGING CYCLES — A PERIMENOPAUSE MODE (FREE) When your cycles start changing, most trackers break — predictions turn into noise. Switch DotDiary to Changing Cycles (you choose; the app never decides for you) and it describes instead of predicts: days and months since your last period, your recent cycle range, and a plain-language guide to the transition. Pro adds a month-by-month chart of hot flashes, night sweats, sleep and mood — and a doctor-ready PDF report that turns your next appointment from guesswork into a conversation. SWITCHING FROM FLO OR CLUE? Bring your history with you. DotDiary imports a Flo or Clue CSV export — free — and writes it into Apple Health, so you start with your real cycle instead of a blank slate. DOTDIARY PRO — one-time purchase • Month-by-month symptom chart for changing cycles • Your own custom symptom tags • Symptom patterns by cycle phase • A doctor-ready PDF report • Partner summary sharing • iCloud backup of your private notes Buy once and it's yours forever — and future Pro features arrive free. DISCRETION Pick a neutral app icon and turn on Face ID / passcode lock. iOS can also require Face ID to open — or completely hide — any app. UNDERSTAND YOUR CYCLE A built-in guide explains the four cycle phases, the difference between the follicular and luteal halves, and the hormones behind them — all in plain language. Available in English and French. DotDiary is not a medical device. Cycle predictions are estimates only and must not be used for contraception or conception planning. Fertility signs are logged to Apple Health; DotDiary does not predict fertile days.

Screenshots

Ovulation Fertility Tracker4 screens
DotDiary4 screens

Verdict

The call

The clearest difference is update cadence: DotDiary at daily against Ovulation Fertility Tracker's every 5 weeks. Ovulation Fertility Tracker's advantage is device support (3 vs 1) and iOS requirement (15.0.0 vs 17.0). On price, 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. Ovulation Fertility Tracker sells 3 in-app purchases, starting at $3.99 per 7 days and DotDiary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ovulation Fertility Tracker ships an update every 5 weeks, DotDiary daily. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
Ovulation Fertility Tracker versus DotDiary: the parameters behind the verdict, then further details
ParameterOvulation Fertility TrackerDotDiary
PriceFreeFree
Rating4.7 (6 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 weeksDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0.0 — better17.0
Further details — not scored
Size41 MB2 MB
Age rating12+12+
DeveloperICartaFredy Soussou

In-app purchases

3 purchases

Ovulation Fertility Tracker

Subscriptions3
  • Ava AI Weekly3 Days trial$3.997 Days
  • Ava Monthly$7.991 Month
  • Ava Annual$69.991 Year
1 purchases

DotDiary

One-time1
  • DotDiary Pro$2.99

Questions

Is Ovulation Fertility Tracker free?
Ovulation Fertility Tracker is free to download, with in-app purchases available.
Is DotDiary free?
DotDiary is free to download, with in-app purchases available.
Do Ovulation Fertility Tracker or DotDiary have ads?
Neither Ovulation Fertility Tracker nor DotDiary shows ads.
Which is updated more often, Ovulation Fertility Tracker or DotDiary?
Ovulation Fertility Tracker ships an update every 5 weeks, and DotDiary daily. Most recently, Ovulation Fertility Tracker was updated on September 14, 2026 and DotDiary on September 18, 2026.

Other comparisons