Comparison

Fourth Trimester vs Sibyl Care

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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-

About

Sibyl Care

Features
Read full description

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

Fourth Trimester4 screens
Sibyl Care4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 8 level
Fourth Trimester versus Sibyl Care: the parameters behind the verdict, then further details
ParameterFourth TrimesterSibyl Care
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size58 MB23 MB
Age rating12+17+
DeveloperPeyton KettlerSibyl

In-app purchases

3 purchases

Fourth Trimester

Subscriptions3
  • Fourth Trimester Premium$9.991 Month
  • Fourth Trimester Pass$24.993 Months
  • Fourth Trimester Premium$79.991 Year
4 purchases

Sibyl Care

Subscriptions3
  • Sibyl Monthly7 Days trial$9.991 Month
  • Sibyl 3-Month$23.993 Months
  • Sibyl 6-Month$41.996 Months
One-time1
  • Sibyl Lifetime Access$99.99

Questions

Is Fourth Trimester free?
Fourth Trimester is free to download, with in-app purchases available.
Is Sibyl Care free?
Sibyl Care is free to download, with in-app purchases available.
Do Fourth Trimester or Sibyl Care have ads?
Neither Fourth Trimester nor Sibyl Care shows ads.
Which is updated more often, Fourth Trimester or Sibyl Care?
Fourth Trimester ships an update every 3 days, and Sibyl Care every 6 weeks. Most recently, Fourth Trimester was updated on October 10, 2026 and Sibyl Care on October 28, 2026.

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