Get the app

A day of feeding, sleeping and growing

Oa keeps track,
you keep watching

From the last feed to the latest nap — log the day in a few taps and see your baby’s rhythm at a glance.

Coming soonApp Store · iOSComing soonGoogle Play · Android
Seoa’s timeline for today. Asleep for 51 minutes since 09:11; 170 ml of formula at 06:57.
Medium widget with Seoa’s face and name, asleep status and 00:25:32 sleep timer, formula 480 ml and 5 diapers
Seoa · 6 moAsleepLast feed 06:57 · Formula 170 ml

Easy to set up,
logs that fit your child

Getting started · A name, birthday and photo

Add your child without an account and log the first entry right away.

Child profile · Age and growth at a glance

Age and day count come from the birthday; height and weight gather on the profile.

Siblings · Siblings get their own logs

Switch between children and keep each one’s records separate.

Every child · Each child’s own kind of day

From formula, nursing and pumping to solids and meals — log what fits your child’s age.

Seoa’s profile: 6 months 6 days, day 190, born Apr 8, 2026, 66.2 cm, 7.45 kgChild picker with Jiwoo 39 months, Seoa 6 months and Seojun 6 months
  • Hajun1 moFormulaFeed intervals
  • Jia3 moNursingPumping
  • Seoa6 moFormulaFirst solids
  • Doyun10 moSolidsSnacks
  • Jiwoo39 moMealsSleep

Insights

Your logs, turned into
a rhythm you can see

Compare your logs with the day before, recent days and the reference range for your child’s age.

  • DailyFeeds, sleep and diapers vs. the day before and the reference range
  • WeeklyLast 7 days of intake and sleep
  • MonthlyThe last 4 weeks as weekly averages

Insights

Feeding
885ml5 feeds
Wet
6xWet
Dirty
1xDirty
Sleep
11h 57mSleep
Interval
4h 14mInterval
Bath
1xBath

Feeding

Count5x
Prev 5x
Logged intakeIn ref range885ml
Prev 805mlRef 800~960ml
Pumping0ml · 0x
Avg feeding interval4h 14m

Sleep

Total sleepBelow ref11h 57m
Prev 12h 13mRef 12–16h
Naps2h 36m
Night9h 21m

Diaper

WetIn ref range6x
Prev 6xRef 5–9x
DirtyIn ref range1x
Prev 1xRef 0–3x
Photo of Seoa
Seoa6m 6d · Day 190

How a day adds up

  1. One hand is enough, even with your baby in your arms. Tap a usual amount and the time and amount are saved — straight onto today’s timeline.

  2. See the week’s rhythm at a glance. Feeds and sleep laid out hour by hour show your baby’s pattern these days.

  3. Get your week at a glance. How feeding and sleep changed compared to last week is clearly summarized in plain words.

Formula entry sheet with 10:02 AM, a 170 ml amount selector, and save buttonWeekly care calendar for Oct 11–17 with feeding and sleep blocks by hourSeoa’s weekly briefing: average daily feed up 80 ml, sleep rhythm more stable.

Growth

Height and weight,
and where they stand

Seoa’s weight growth chart: latest 7.45 kg, WHO percentile 55, top 45%

Log height and weight to see the current percentile against the WHO growth standards.

Little milestones

Firsts become
badges

Seoa’s badge album with moments like Grew 15cm, First 150ml and First babble
Grew 15cmOct 12, 2026
First 150mlSep 2, 2026
First babbleJun 23, 2026

Log moments like first 150ml or first babble and they gather, dated, in each child’s album.

Invite your family,
care for the same child

With one invite link or code, mom, dad and caregivers connect with their own accounts.

Seoa’s family screen with Mom and Dad connected and an invite button
Mom
Dad

Caring together

Everyone who cares
sees the same log

Check the last feed and sleep together and keep care going between hand-offs.

  • Each with their own accountConnect family with an invite link or code and log for the same child.
  • Permissions per personChoose who can edit records and the profile.
  • Pick up where they left offNo need to recap the last feed and nap at every hand-off.

iPhone widgets

Before opening the app,
right from your Home Screen

Put Oa on your Home Screen

See today’s formula, diapers and sleep without opening the app.

Three quick buttons

Formula opens the entry sheet or saves a set amount;
diaper saves one poop right away.

* Widget button actions can be customized in the app settings.

Settling down? Start sleep

Tap it and the widget switches to asleep with a deep navy look.

Awake? End sleep

The widget turns light again and the nap is added to today’s sleep.

Everyday tools

What you need while caring

  • Dark sleep tools screen with a 30:00 white noise timer and start button

    Sleep sounds

    White noise, heartbeat or rain with a timer. The last 10 seconds fade out.

  • Pump timer with total time and left, right and both-sides timers

    Pump timer

    Time left, right and both sides separately, then log the amount yourself.

  • My preparation list with a completed item and items to do

    Birth prep checklist

    A due-date countdown and a list split into to-do, done and later.

  • 2026 monthly care calendar with each month’s calendar and daily averages for feeds, sleep and diapers

    Care calendar

    A monthly view of daily averages for feeds, sleep and diapers, plus each day’s log.

Before you install

Questions

Can I use it without an account?

Yes. You can start logging right away without signing in; records are saved on this device. Sign in with Google when you want backup or family sharing.

What do I need to share with family?

Each person signs in with Google, then joins with the invite link or code from the family member who added the child. If you just installed the app, open the invite link again afterwards to continue.

Which devices support widgets?

Home Screen widgets are available on iPhone. They show today’s summary and three log buttons that either save right away or open the entry sheet.

Where are photos and records stored?

When signed in, your child’s profile and care records are backed up to your account. Original photos and device-only settings such as alerts and widgets stay on this device.

How is the next feed time shown?

A reference window based on feeding intervals from the last 14 days. Please follow your baby’s hunger cues first.

Log today’s care
and keep the moments that matter.

Your first log needs no account.

Coming soonApp Store · iOSComing soonGoogle Play · Android