For expecting mothers
Health metrics,
adjusted for pregnancy.
Bloom uses your pre-pregnancy baseline and pregnancy-adjusted ranges to tell you what's normal — for you, this trimester. Designed with OB-GYNs.
What Bloom does
Built for a body that's
changing every week.
Pregnancy-adjusted ranges.
Heart rate, HRV, sleep, and temperature — interpreted against your personal pre-pregnancy baseline, not a generic chart. Your range, not the population average.
Tracking that evolves.
Each trimester surfaces different signals. Bloom automatically shifts what it shows you as your pregnancy progresses, week by week.
Daily check-in.
Log symptoms, prenatal vitamins, weight, and mood. Everything in one place, with a log that builds into a meaningful picture of your pregnancy.
Kick counter.
Count fetal movements with a single tap. Sessions are saved with timestamps so you can share them at your next appointment.
Apple HealthKit connected.
Bloom reads biometric data directly from your wearable — Apple Watch, Oura, Garmin, and more — through HealthKit. No manual entry.
Your resting heart rate is within your adjusted range for week 33. Calculated from your pre-pregnancy baseline and current trimester.
· Calculated from your pre-pregnancy baseline and current trimester
Today's check-in
Symptoms
1 logged
Prenatal vitamin
Weight
152 lbs
Kick counts
Tap + to start a session
Why it's different
Your body.
Your baseline.
Resting heart rate rises 15–20 bpm during pregnancy. HRV shifts. Blood oxygen reads differently. Every other app is still comparing you to your pre-pregnancy self, or worse — to someone else entirely. Bloom is the only app that adjusts for what's actually happening in your body.
Third Trimester
Week 33
SIZE OF
a Pineapple
Week-by-week
What's happening,
explained clearly.
Every week, Bloom surfaces what's developing with your baby and what's changing in your body — written in plain language, reviewed by OB-GYNs, and updated as you progress.
Baby development
Size, weight, and what's forming this week
Your body this week
What's changing and what to expect
Weekly insight series
Sleep in pregnancy, HRV explained, nutrition deep-dives, and more
OB-GYN reviewed
Every insight written and reviewed by practicing OB-GYNs
Jaimie Maines, MD, FACOG
Board certified Obstetrician/Gynecologist
Board certified Maternal Fetal Medicine Specialist
Reviews all clinical content before it appears in the app
Ensures insights are accurate, appropriately scoped, and evidence-based
Sources grounded in ACOG guidelines, Williams Obstetrics, and peer-reviewed literature
Bloom is a wellness tool — not a substitute for clinical care
Medical credibility
Built with doctors,
not around them.
Bloom's content is written and reviewed by a practicing OB-GYN and Maternal Fetal Medicine specialist — not generated from generic health databases. Every insight you read has been through clinical review before you see it.
ACOG-grounded
Trimester thresholds and clinical framing sourced from American College of Obstetricians and Gynecologists guidelines.
Your data stays yours
No advertising, no data brokers. HealthKit data is used only inside the app, per Apple's terms.
Wellness, not diagnosis
Bloom helps you understand your biometrics. It does not diagnose, prescribe, or replace your care team.
Why Bloom exists
Built by a mom
who needed it.
I was eight weeks pregnant, watching my heart rate trend high on my wearable every day. I asked my OB. She said it was completely normal — your heart rate climbs to support the extra blood volume your body is building. The app had no idea I was pregnant. I built Bloom because that gap shouldn't exist.
— Sarah, Founder of Bloom
Bloom is free for the first 100 members. No credit card required. We're building this with the people who need it most — and we want to hear from you as we grow.
Early access
Be the first to know
when Bloom opens.
Free for the first 100 members. We'll reach out when Bloom is ready — before it's publicly available on the App Store.