Comparison

Luna vs Conception Calendar

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

Head to head
About

Luna

Features
Read full description

Luna is the period and fertility tracker that keeps your most personal health data exactly where it belongs โ€” on your device. No accounts. No cloud sync. No data sharing. Just intelligent, private cycle tracking powered entirely by on-device machine learning. YOUR DATA NEVER LEAVES YOUR PHONE Luna was built from the ground up with privacy as the foundation. Every prediction, every insight, every log entry is processed and stored locally. We can't see your data because it never reaches us โ€” not even anonymized. SMART PREDICTIONS, PRIVATELY POWERED Luna's on-device ML model learns your unique cycle patterns over time, delivering increasingly accurate predictions for: Period start and end dates Fertile windows and ovulation estimates PMS and symptom pattern recognition Cycle length trends and irregularities TRACK WHAT MATTERS TO YOU Daily symptom and mood logging Flow intensity and duration Basal body temperature (BBT) Cervical mucus and ovulation signs Intimacy and contraception notes DESIGNED FOR EVERY BODY Luna adapts to irregular cycles, post-hormonal transitions, perimenopause, and more. There's no "normal" cycle โ€” Luna learns yours. BUILT FOR TRUST At a time when reproductive health data has never been more sensitive, Luna takes a firm stance: what happens on your phone stays on your phone. No account required to get started. No subscription needed to unlock your own data.

About

Conception Calendar

Features
Read full description

Conception Calendar is a science-based, minimal, privacy-first fertility tracker for those trying to conceive (TTC). โ€ข Fertile window & peak-fertility estimates (Wilcox model) โ€ข Symptothermal tracking: basal body temperature (BBT) + cervical mucus for retrospective ovulation confirmation โ€ข Premium, clean monthly calendar; accessible via colour + icon + label โ€ข AI-powered TTC coach (Premium) โ€” context-aware, educational answers to your questions โ€ข Your data stays ONLY on your device โ€” no servers, no iCloud, never sold, no ads โ€ข Optional Apple Health integration โ€ข Fun section: cultural gender predictions (not scientific, for entertainment) Conception Calendar is not a medical device; results are estimates and cannot be used for contraception. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dogum-takvimi.web.app/privacy-policy-en.html

Screenshots

Luna4 screens
Conception Calendar4 screens

Verdict

The call

The clearest difference is in-app purchases: Conception Calendar at none against Luna's 2. Luna's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Luna sells 2 in-app purchases, starting at $6.99 per month. Conception Calendar asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Luna versus Conception Calendar: the parameters behind the verdict, then further details
ParameterLunaConception Calendar
PriceFreeFree
Update frequencyEvery 2 daysโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size19 MB1 MB
Age rating12+17+
DeveloperThompson Software LLCKerim Oz

In-app purchases

2 purchases

Luna

Subscriptions2
  • Monthly$6.991 Month
  • Yearly$39.991 Year
None

Conception Calendar

No in-app purchases

Questions

Is Luna free?
Luna is free to download, with in-app purchases available.
Is Conception Calendar free?
Conception Calendar is free to download, with no in-app purchases.
Do Luna or Conception Calendar have ads?
Neither Luna nor Conception Calendar shows ads.

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