01baby heartbeat app
Hear your baby — through your phone alone
No doppler to buy. No batteries. No probe. Cudly uses your phone's microphone, amplified, to capture the soft swooshes of pregnancy. Save every session, label it by week.
Available on iOS & Android
The pregnancy journal you'll cudly forever.
Record your baby's heartbeat using only your phone. Write down the day. Watch the weeks unfold. A pregnancy app that feels like a friend — not a medical device, not an ad machine.
★★★★★4.8 — 2,147 reviews
No ads. No data sales.
9:41●●●100%
Week 22
Hello,
little papaya.
Heartbeat142 BPM
Tuesday · 0:42 recording
Today's note
"Felt the first kick on the drive home. Pulled over. Cried a little."
♥ Saved forever
"Cudly isn't a doppler. It isn't a medical device. It's the place we wish we'd had — to capture the small sounds, write down the worries, and remember the weeks we'll never get back."
— The Cudly team
What's inside
More than a heartbeat app.
A pregnancy that gets remembered.
Most pregnancy apps are one thing: a tracker, a doppler, a forum. Cudly is the quiet, beautiful place that holds all of it — the recordings, the entries, the photos, the people you love.
02pregnancy journal
A guided pregnancy journal you'll actually open
Forget blank pages. Cudly gives you one warm prompt a day — for the cravings, the worries, the first kick, the questions you can't ask anyone else. The pregnancy journal that grows with your bump.
03pregnancy tracker week by week
Week by week — without the doom-scroll
Watch your baby grow from a poppy seed to a watermelon. Pregnancy tracker week by week, with milestones that feel like a friend telling you, not WebMD.
04pregnancy scrapbook
Bump photos. Voice notes. Letters to baby.
A pregnancy scrapbook that lives on your phone — and exports as a real keepsake book at the end. Photos, voice notes, recorded heartbeats, hopes for the future, all in one place.
05partner pregnancy app
Share with dad. With grandma. Privately.
A private partner link for the people you love. No public feed, no algorithm. Just the people who care about this baby — getting the heartbeat audio, the weekly note, the photo.
06pregnancy after loss app
Quiet Mode — for pregnancy after loss
If you're here after a loss, we built Cudly with you in mind. Mute fruit-size notifications. Skip milestones. Journal without the cheerleading. We'll be quiet — and we'll still be here.
Built for the second trimester
Made for weeks 16 to 24 — when you can't feel anything yet and your next OB visit is forever away.
Most pregnancy apps treat every week the same. We don't. The window between the 12-week scan and feeling reliable kicks is where Cudly leans in hardest — daily prompts, sound captures, kick logs, and gentle reassurance, designed by people who lived it.
16
First captures
20
First flutters
24
Real movement
“My anxiety is so bad I just need that bit of reassurance.”
“I want something genuinely useful, respects my privacy, and doesn't push weird vibes.”
“Pretty much every app in the world is selling data even if they say they don't.”
Real quotes from r/PregnancyUK, r/Mommit
Compare
The pregnancy app landscape, honestly.
We won't pretend the alternatives don't exist. Here's how Cudly compares to the most-searched options.
Cudly vs
HeraBEAT
Premium hardware doppler ($200+)
No hardware, no $200, no shipping wait.
Read comparison
Cudly vs
Hear My Baby
iOS-only single-feature recorder
Cross-platform, with journal & weekly tracker.
Read comparison
Cudly vs
Baby Doppler app
Companion to a $50-70 home device
No device required. Bonding without the anxiety.
Read comparison
The Cudly Journal
Honest essays for the
long second trimester.
Timeline
When can you hear your baby's heartbeat at home? An honest week-by-week timeline.
8 min read
Safety
Is it safe to use a fetal doppler at home every day? What OBs actually say.
10 min read
Reassurance
"I can't find the heartbeat." What to do when the panic hits — and why it's usually fine.
7 min read
The questions everyone asks
Honest answers.
No marketing speak.
Can a phone really record a baby's heartbeat?
Yes — but let's be honest about what's happening. Cudly amplifies the sounds your phone's microphone picks up when held against your bump. From around 16-20 weeks for many women, that includes faint placental and fetal sounds. Cudly is a keepsake recorder, not a medical device — it captures sounds for you to remember, not for diagnosis.
When can I expect to start hearing something?
Most users start catching audible sounds between 16 and 20 weeks. Body type, baby position, and placenta position (especially anterior placenta) all affect what you'll hear. Many women won't catch anything clear until 22-24 weeks, and that's normal — Cudly's journal works from day one regardless.
Is Cudly safer than a home fetal doppler?
Cudly uses no ultrasound and no electromagnetic waves — it's a passive microphone recording, like a stethoscope. It's also not trying to be a diagnostic tool. Many home dopplers cause anxiety when users can't find a heartbeat. Cudly is built around bonding, not diagnostics. For any medical concern, always call your OB.
Will Cudly sell my pregnancy data?
No. Cudly does not sell, share, or use your data for advertising. Your journal entries, recordings, and photos live encrypted on your device and (optionally) your private iCloud or Google Drive. We have no third-party ad SDKs and no analytics that identify you. Read our privacy page for the full breakdown.
Does Cudly work on Android?
Yes. Unlike most baby heartbeat apps, Cudly ships on both iOS and Android from day one.
How is Cudly different from Hear My Baby or HeraBEAT?
Cudly is phone-only (no $200 hardware like HeraBEAT), it's available on both iOS and Android (Hear My Baby is iOS only), and it adds a full pregnancy journal, week-by-week tracker, and partner sharing — none of which the heartbeat-only apps offer. See our comparison pages for the full breakdown.
Got a different question? See the full FAQ →
Download Cudly
Free on iOS.
Free on Android.
No accounts. No ads. No data sales. Just you, your phone, and forty weeks worth remembering.
4.8
App Store rating
2k+
Reviews
♥
No ads, ever
Start your pregnancy story today.
Record your baby's heartbeat, write down the day, watch your weeks unfold. Free to download — no doppler, no ads, no data selling.