Made for
full hands and
short nights.

Coo is a baby tracker that works by events, not stopwatches. Tap "feeding started" once and put the phone down. Coo works out the rest.

Download on the App Store Free. No ads. No sign-up.

Fix it in a second

Off by a few minutes? Drag it.

Press and hold an event, then slide it to when it really happened. Coo re-sorts the day and redoes the math.

Or tap the time and type it.

Three digits and it’s fixed. No clock wheels. Logged something by mistake? Swipe it away.

Just 1 tap, seriously.

Log from a Home Screen widget, the Action Button, or your Apple Watch. Or say “Log in Coo” to Siri.

Know before you unlock

Last feed, awake time and today’s totals, right on your Lock Screen.

Know before you unlock

Coo fills the gaps

Baby dozed off mid-feed? Coo ends the feed. Forgot “woke up” before a night feed? Coo adds it. Anything Coo adds looks slightly different, and what you log yourself always wins.

Coo fills the gaps

The whole village, one log

Invite a partner, grandparent or nanny through iCloud. When they log, your phone knows. No account, no email, no password.

The whole village, one log

What does baby do at 9 a.m.?

Week and Month views lay every day side by side. Hold anywhere to see the pattern: “Asleep at this time on 6 of 7 days.”

Their story builds itself

First 3-hour sleep, 100th feed, one month old: Coo finds the milestones in your log. Add photos and press play.

Answers before you search

Explore brings up what’s coming for your baby’s age, from rolling to the 4-month sleep shift to RSV season, with sources you can check.

And when you have a minute

Every number, already counted

Every number, already counted

Sleep, feeds and diapers: today’s totals and 7-day trends.

Growth, on the curves

Growth, on the curves

WHO percentiles, with age corrected for babies born early.

Your data stays yours

Nothing collected

Your log lives on your devices and in your own iCloud. Not on our servers.

No account

No email, no password. Open the app and log.

Free, no ads

The whole app, with nothing to unlock.

Bring it, take it

Import from another tracker. Export any week as text or CSV.

Coo is free on iPhone and Apple Watch.

Download on the App Store