From bump to baby, one calm step at a time.
Duckaby starts with your due date: what matters this week, a plan that shows one step at a time, and the facts for your state. When baby arrives, the same app becomes your 3 a.m. log. Your data stays on your phone.
No account. No ads. No trackers — in the app or on this site.

20 weeks to year one
Duckaby grows with you instead of asking you to switch apps at the hospital doors.
- ~20 weeks
Your due-date plan starts: one step at a time, plus sourced facts for your state on leave, Medicaid, WIC and car-seat law.
- Birth
Deadlines re-anchor to your baby's real birth date. The same app becomes your sleep, feed and diaper log.
- First 6–12 weeks
Recovery check-ins and an Edinburgh Postnatal Depression Scale screen, private to your phone unless you turn sharing on.
- Year one
The nap predictor learns your baby's own rhythm and scores its own accuracy as the months go by.
Facts for your week, not a wall of tasks

Your week, at a glance
Baby's size, days to go and what matters now, from your due date.

A plan for your due date
Never a wall of tasks — just what's next. Pick your state with one tap (Duckaby can suggest it from your phone's time zone; no location permission) to see sourced facts on paid leave, postpartum Medicaid, WIC, 529 plans and car-seat law. Laws change, so each fact links to its source.

Libre vs meter, explained
Log finger pricks and import a LibreView CSV. Duckaby learns the usual gap between your sensor and your meter and flags readings that may be false lows. Targets are shown against finger pricks only. It's a notebook, not a diagnosis — your care team decides.
Recovery after birth
Recovery check-ins for the first six weeks, and the Edinburgh Postnatal Depression Scale (a screen, not a diagnosis) with support lines. Your pregnancy and recovery health stays private to your phone unless you turn on sharing.
You, after baby
The same calm one-step-at-a-time plan follows you into the fourth trimester, not just the pregnancy.
The 3 a.m. log, made for one hand

Swipe, don't type
Catch up in a minute. Right if it's done.

Knows the next nap
Learns your baby's rhythm from every logged sleep and suggests a next-nap window. An estimate, not a promise.

Ask anything. Private.
Ask or log in plain words. Answers are worked out on your phone from your own log.
Your family's log is nobody else's business
No account, ever
Your log lives on your phone. There's nothing to sign into and nothing of yours on our servers.
End-to-end encrypted sharing
Family sharing is end-to-end encrypted. The key lives only in your invite link; our relay stores scrambled data it cannot read.
No ads, no analytics
No ad networks, no analytics or tracking SDKs in the app. This website has no trackers either.
Nursery Listener Coming soon
A spare phone logs sleep from sound, processed on the device, never stored or sent. It is not a breathing, oxygen or safety monitor.
Have a question?
From how the nap predictor works to what happens if we never ship Sleep Coach — it's answered in the FAQ.
Sleep Coach Pre-order
$29 one-time
Sleep Coach — $29 one-time pre-order, full refund within 30 days, ships when ready. A step-by-step sleep plan built from your baby's own log. It isn't built yet — we'll build it if enough parents want it.
- Pre-order now, pay once.
- Full refund within 30 days, or any time before it ships — no questions.
- If we don't build it, you get your money back.
Payment is handled by Stripe. Refund policy.