Fourth Trimester vs Sibyl Care
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fourth Trimester
This app provides comprehensive postpartum support for new mothers, offering tracking for baby and mom's well-being, expert-curated educational content, AI-powered guidance, and a supportive community. It aims to make the postpartum journey feel less overwhelming and more connected.
- Baby and Mom tracking (feeding, sleep, mood)
- Postpartum recovery and symptom logging
- Expert-reviewed newborn and postpartum education
- AI-powered Mama Coach for guidance
- Community support with other mothers
- Milestone tracking up to 24 months
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Fourth Trimester Pregnancy and postpartum don’t come with a manual. Fourth Trimester was built to be the support every parent deserves. Whether you’re preparing for birth, navigating the newborn stage, or recovering after delivery, Fourth Trimester brings expert-backed education, personalized guidance, tracking, and AI-powered support together in one place. Pregnancy & Postpartum Guidance Follow week-by-week guidance tailored to where you are, with practical information that grows alongside you and your baby. Baby & Mom Tracking Keep track of feedings, diapers, sleep, pumping, growth, postpartum recovery, mood, symptoms, medications, and more. View meaningful trends and insights over time. Personalized Daily Insights Receive helpful daily guidance based on your baby’s age, your postpartum stage, and your recent tracking to help you feel more confident every day. Mama Coach AI Get instant answers to everyday pregnancy, newborn, feeding, sleep, recovery, and parenting questions whenever you need extra support. Learn with Confidence Explore an expanding library of expert-backed articles covering: - Pregnancy - Postpartum recovery - Newborn care - Feeding - Sleep - Development - Mental health - Milestones - Parenting Stay Organized Keep everything in one place with daily checklists, reminders, milestones, routines, and personalized recommendations. Designed for Real Life Beautifully designed, simple to use, and created to support you through every stage of pregnancy and postpartum. Whether you’re tracking your newborn at 2 a.m., looking up feeding questions, or needing reassurance during a hard moment, Fourth Trimester helps you feel more informed, supported, and less alone. Because you should not have to do postpartum alone. Disclaimer: Fourth Trimester is designed for educational and wellness support only and does not provide medical advice, diagnosis, or treatment. Privacy Policy: https://mamasupport4thtrimester.com/privacy-policy Terms of Use: https://mamasupport4thtrimester.com/terms-of-
Sibyl Care
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Your guide through pregnancy loss. Sibyl is a private companion for miscarriage and pregnancy loss — here whenever you need answers, reassurance, or just a place to make sense of it all. Losing a pregnancy can feel disorienting, isolating, and hard to put into words. Whether you're in the early days or further along, Sibyl offers gentle, ongoing support as feelings, questions, and decisions come up — tailored to what you're experiencing right now. Sibyl has been built with the input of medical and mental health professionals specializing in pregnancy loss, so everything inside is clinically grounded, expertly reviewed, and designed with your real needs in mind. Inside Sibyl, you can: - Receive personalized support and information based on where you are in your experience - Read clear, clinically reviewed articles on what to expect — physically and emotionally - Work through guided reflection exercises developed with mental health professionals to help you process what you're feeling - Talk with a supportive AI companion, available any time - Find support organized around your mind, body, and everyday life - Build a picture of your experience over time, so support feels continuous Sibyl is designed to help you feel less alone — and more supported for whatever comes next. Terms of Use: https://www.sibyl.care/terms-of-use
Screenshots
Verdict
The clearest difference is update cadence: Fourth Trimester at every 3 days against Sibyl Care's every 6 weeks. On price, ads, in-app purchases and device support 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. Fourth Trimester sells 3 in-app purchases, starting at $9.99 per month and Sibyl Care sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Fourth Trimester ships an update every 3 days, Sibyl Care every 6 weeks. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.
| Parameter | Fourth Trimester | Sibyl Care |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 23 MB |
| Age rating | 12+ | 17+ |
| Developer | Peyton Kettler | Sibyl |
In-app purchases
Fourth Trimester
- Fourth Trimester Premium$9.991 Month
- Fourth Trimester Pass$24.993 Months
- Fourth Trimester Premium$79.991 Year
Sibyl Care
- Sibyl Monthly7 Days trial$9.991 Month
- Sibyl 3-Month$23.993 Months
- Sibyl 6-Month$41.996 Months
- Sibyl Lifetime Access$99.99









