40 Weeks vs Lunera
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
40 Weeks
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This little app shows you the most important data about your pregnancy in a simple way. There is no way to save photos, write a diary or anything else. Only the most important figures on the current state of pregnancy. You only set the due date and choose which data you would like to see displayed: - Current month - Current week - Current day - Detail (30 + 3) - Current trimester You can also enter your preferred name for the offspring and as soon as you know it (or want to know) the expected gender. On request, the colors also adapt to each gender. A Today extension provides an even faster overview. Do you have any wishes for extensions or changes like to write me on Twitter or leave a comment.
Lunera
Track your pregnancy week by week with detailed growth information and visualizations. Time contractions with real-time stats and helpful insights. Offers a one-time purchase for advanced features like AI insights and PDF reports.
- Week-by-week baby growth information
- Contraction timing with real-time stats
- AI-powered personalized insights
- Customizable tracking methods
- Home and lock screen widgets
- Siri voice command integration
- PDF reports for healthcare providers
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Lunera is a beautifully minimal pregnancy tracker designed to help you celebrate every week of your journey with educational information and delightful visualizations. TRACK YOUR PREGNANCY YOUR WAY • Three calculation methods: Last Menstrual Period, Conception Date, or Due Date • Real-time week display with daily countdown • Automatic trimester tracking with progress visualization • Know exactly how far along you are at any moment LEARN ABOUT YOUR BABY'S GROWTH • Week-by-week development information for all 40 weeks • Weeks 41 and 42 as well, because 40 weeks is an estimate and plenty of babies take longer • Educational size and weight reference data • 42 relatable size comparisons (from poppy seed to pumpkin) • Baby development highlights and maternal changes • Beautiful custom illustrations for each week TIME YOUR CONTRACTIONS • Start and stop contractions with a single tap • Real-time stats: count, average duration, average interval • Session history with full detail for every contraction • Edit intensity (mild, moderate, strong) and add notes • Live Activity on lock screen and Dynamic Island • Start and stop hands-free with Siri voice commands • Control Center widget and Action Button support WHEN YOUR BABY ARRIVES • Record the birth from the home screen or from settings, and add their name • Your baby's age the way parents say it: days, then weeks, then months • Home screen, widgets, Control Center and Siri all follow along LUNERA PRO Unlock more of your journey with a one-time purchase — no subscription, no recurring fees. • Week Explorer: browse all 42 weeks at your own pace, even weeks ahead • AI-Powered Insights: a fresh personalized insight generated on your device each time you open the app (requires Apple Intelligence) • 5-1-1 Pattern Detection: your cue to call your doctor or midwife • Guided Breathing: calming 4-4 breathing exercises during contractions • PDF Reports: share detailed session reports with your healthcare provider • iCloud Sync: keep your contraction data safe across all devices ASK SIRI Control Lunera with your voice — start and stop contractions, or ask what week of pregnancy you're on. No need to open the app. Works in multiple languages. STAY CONNECTED WITH WIDGETS • Home screen widgets in three sizes (small, medium, large) • Lock screen widgets (circular, rectangular, inline) • See your current week and baby's size at a glance • Daily automatic updates NEVER MISS A MILESTONE • Weekly push notifications with development updates • Beautiful, personalized messages • Smart scheduling (only for current and upcoming weeks) PRIVACY FIRST, ALWAYS • No ads, no subscriptions — Lunera PRO is a one-time purchase • All data stored locally on your device • No tracking, no analytics, no third-party servers • No account required • Minimal, intuitive interface Whether this is your first pregnancy or you're a seasoned parent, Lunera provides the perfect balance of helpful information and creative design to help you celebrate every week of your journey. IMPORTANT: Lunera is for informational and educational purposes only. It is NOT a medical device and should NOT be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider with any questions about your pregnancy.
Screenshots
Verdict
The clearest difference is in-app purchases: 40 Weeks at none against Lunera's 1. Lunera's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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
Both are free to download. Lunera sells 1 one-off in-app purchase. 40 Weeks asks for nothing beyond the download.
40 Weeks ships an update every 2 months, Lunera every 3 weeks. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.
| Parameter | 40 Weeks | Lunera |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 38 MB |
| Age rating | 4+ | 12+ |
| Developer | Matthias Barann | Luka Hristic Grubor |
In-app purchases
40 Weeks
No in-app purchases
Lunera
- Lunera PRO$9.99









