Comparison

Fertility Tracker | Ovulation vs Aster

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

Head to head
About

Fertility Tracker | Ovulation

Features
Read full description

Fertility Tracker Fertility Tracker is a simple cycle tracking app designed to help you monitor your menstrual cycle and estimate fertile days based on your input data. It provides an easy way to log periods, track cycle patterns, and view predicted ovulation windows. The app focuses on clarity and simplicity, helping you understand your cycle history without unnecessary complexity. By recording your period dates regularly, you can better observe patterns over time and plan ahead. Free Features Period and cycle logging Ovulation and fertile window estimates Cycle calendar view Period history tracking Cycle length overview Symptom and note logging Simple reminders for cycle tracking Premium Features Advanced cycle predictions Detailed fertility window insights Extended history and analytics Custom reminders and notifications Data export options Ad-free experience Future premium features and updates Fertility Tracker is designed as a personal tracking tool to help users better understand their cycle patterns. It keeps everything simple, focusing on basic logging and predictions rather than medical or diagnostic functions. Consistent tracking can help you observe your cycle trends over time and maintain better awareness of your personal patterns. Disclaimer This app is intended for informational and tracking purposes only. It does not provide medical advice, diagnosis, or treatment. Cycle predictions are estimates and may not be accurate for all users. Consult a healthcare professional for medical concerns related to fertility, menstruation, or reproductive health. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Aster

Features
Read full description

Aster helps you make sense of perimenopause and menopause. Log your symptoms in seconds, connect Apple Health, and turn months of data into clear patterns you can share with your doctor. WHY ASTER • Built for the transition years (ages 35 to 55), not just period tracking • Log 24 menopause-specific symptoms with severity in under 30 seconds • Syncs sleep, HRV, resting heart rate, steps, weight and cycle data from Apple Health, with no retyping • 100% on-device. Your health data never leaves your phone. TRACK WHAT MATTERS • Hot flashes, night sweats, insomnia, brain fog, anxiety, joint pain and more • Daily mood, energy and lifestyle tags (caffeine, alcohol, exercise, stress) • HRT, medication and waist measurements • A calendar history of every day PREMIUM INSIGHTS • Symptom Burden score with a clear severity band and monthly trend • Severity heatmap and time-of-day patterns • Personal patterns: how sleep, HRV and activity are associated with your symptoms • Cycle insights with a next-period window and transition cues • A before-and-after view comparing your symptoms around HRT changes • One-tap Doctor Report PDF for your next appointment PRIVATE BY DESIGN Everything is computed on your device. No accounts, no servers, no ads, and your data is never sold. Aster is a wellness and tracking app. It is not a medical device and does not provide medical advice or a diagnosis. Always consult a qualified clinician about your health. ASTER PREMIUM Unlocks insights, correlations and the doctor report. • Monthly: $7.99 • Annual: $49.99, with a 30-day free trial Payment is charged to your Apple ID. Subscriptions automatically renew unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.velorahealth.io/aster/terms Privacy Policy: https://www.velorahealth.io/aster/privacy

Screenshots

Fertility Tracker | Ovulation4 screens
Aster4 screens

Verdict

The call

The clearest difference is ads: Aster at none against Fertility Tracker | Ovulation's shown. Fertility Tracker | Ovulation's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and in-app purchases 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. Fertility Tracker | Ovulation sells 4 in-app purchases, starting at $0.99 per 7 days and Aster sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fertility Tracker | Ovulation ships an update every 3 months, Aster every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Fertility Tracker | Ovulation versus Aster: the parameters behind the verdict, then further details
ParameterFertility Tracker | OvulationAster
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size80 MB3 MB
Age rating12+12+
DeveloperErdem KaraNgo Pham Huy

In-app purchases

4 purchases

Fertility Tracker | Ovulation

Subscriptions4
  • Premium - Weekly Subscription$0.997 Days
  • Premium - Monthly Subscription$2.991 Month
  • Premium - Yearly Subscription$19.991 Year
Show 1 more
  • Premium - Yearly Subscription$29.991 Year
2 purchases

Aster

Subscriptions2
  • Aster Premium (Monthly)1 Month trial$7.991 Month
  • Aster Premium (Annual)$49.991 Year

Questions

Is Fertility Tracker | Ovulation free?
Fertility Tracker | Ovulation is free to download, with in-app purchases available.
Is Aster free?
Aster is free to download, with in-app purchases available.
Do Fertility Tracker | Ovulation or Aster have ads?
Fertility Tracker | Ovulation shows ads; Aster does not.
Which is updated more often, Fertility Tracker | Ovulation or Aster?
Fertility Tracker | Ovulation ships an update every 3 months, and Aster every 2 months. Most recently, Fertility Tracker | Ovulation was updated on October 28, 2026 and Aster on October 24, 2026.

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