Luna vs Conception Calendar
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Luna
Read full descriptionHide 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.
Conception Calendar
Read full descriptionHide full description
Conception Calendar is a science-based, minimal, privacy-first fertility tracker for those trying to conceive (TTC). โข Fertile window & peak-fertility estimates (Wilcox model) โข Symptothermal tracking: basal body temperature (BBT) + cervical mucus for retrospective ovulation confirmation โข Premium, clean monthly calendar; accessible via colour + icon + label โข AI-powered TTC coach (Premium) โ context-aware, educational answers to your questions โข Your data stays ONLY on your device โ no servers, no iCloud, never sold, no ads โข Optional Apple Health integration โข 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
Verdict
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
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.
| Parameter | Luna | Conception Calendar |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | โ |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 19 MB | 1 MB |
| Age rating | 12+ | 17+ |
| Developer | Thompson Software LLC | Kerim Oz |
In-app purchases
Luna
- Monthly$6.991 Month
- Yearly$39.991 Year
Conception Calendar
No in-app purchases









