BabyTrackerEvery feed, nap and night, shared
BabyTracker is the baby log your whole family shares. Whoever has the baby logs feeds, sleep, diapers, growth and sick days from their own phone. There's a plan for who does what, nap times from your baby's own rhythm, and an assistant that has read the log.
Free during the private beta, for iPhone.
A night feed, and both phones know
Start the timer in the app or from the widget on your home screen. It shows up on your partner's lock screen too, so nobody has to ask when Mia last ate.
How was the night?
Every sleep and wake-up goes in from whichever phone was nearest. By morning the app has counted how often Mia woke, and the care plan says whose night it was.
Daycare’s day, without typing it in
Screenshot the daycare app's feed. Naps, meals and diapers become entries you check before anything is saved.
Nap times that follow your baby
The app starts from the usual wake windows for the age and learns from the days you log. It shows a window rather than a minute, and notices when three naps turn into two.
An assistant that has read the log
Before it answers, it reads the last eight weeks: nights, naps, daycare days and the sick log. It says how sure it is, and when to call the doctor.
At the check-up
Type in what the doctor measured. Weight, height and head go on the WHO curves for girls or boys, with the percentile next to each one.
Milestones sit alongside: 32 to tick off by age, and your own with a photo.
When the fever comes
Log a temperature, a symptom or a dose in seconds. The app counts the days, shows when the next dose is OK by the gap you set from the leaflet, and sums it all up for the doctor.
Who does what this week
Set up a normal week once: mornings, pickups, bedtimes and nights, taken in turns. Ask for a swap and the other person answers with one tap. The fair share shows who is behind over the last four weeks.
Everything in the app
Grouped by what you'll use it for. Everything is free during the private beta.
Logging
One tap for the everyday things, a full form when you want the detail. Anyone in the family can log.
- Breastfeeding timer
- A timer per side. Starting one side pauses the other, a nudge comes after 15 minutes, and the app estimates how much milk it was.
- Bottles
- Formula or pumped milk in ml, with your usual amounts one tap away.
- Solids
- The food, how much (a few bites, some or a full portion) and a note.
- Sleep
- Start and stop a timer with where the baby sleeps and how it went, or add last night and missed naps afterwards.
- Diapers
- Wet, dirty, both or dry in one tap, with colour and consistency if you want them.
- Mood and tags
- A mood score with words like calm or fussy, and tags such as bath, walk, visitors or a doctor visit.
- Activities
- Tummy time, reading, sensory play, outdoor time, floor play, music and massage, with daily goals for the age.
Today and stats
The home screen answers the questions you ask at 3am, and the stats show the weeks.
- Insight card
- How the day is going, with hints like the nap window being open, a feed being due or fewer diapers than usual.
- Score rings
- Milk against the day's goal, sleep, diapers and last night's wake-ups.
- Sleep clock
- The day's sleep around a 24-hour clock, with the next nap window on it.
- Timeline
- Everything logged today and who logged it. Tap an entry to fix it, or page back to earlier days.
- Did you know
- A short fact about what is going on at your baby's age.
- Stats
- Feeds, sleep, diapers and mood over 7, 14 or 30 days, and a diaper leaderboard for the family.
Family and sharing
Everyone who looks after the baby, on the same log at the same time.
- Invite with a link
- Your partner, grandparents, the nanny or the au pair join from a link, as parent, caregiver or viewer.
- Timers on every phone
- When someone starts a sleep or nursing timer, it shows on the others' lock screens and in the Dynamic Island.
- Widget
- One widget in four sizes: start nursing or sleep, log a diaper and see the next nap from the home screen or the lock screen.
- Reminders
- A push when it has been a while since the last feed or since the baby woke up, for whoever switches it on.
- Your own notifications
- Each person picks which pushes reach their phone.
- Several children
- Siblings each get their own log. Switch between them in Settings.
Care plan and nights
Who does what this week, whose night it is, and whether it adds up to fair.
- A normal week
- Morning, pickup, bedtime, nights and weekends, with who usually takes each one. Turns can alternate.
- Swaps
- Ask someone to take a slot. They get a push and answer with one tap.
- Away times
- Trips, holidays, sick days and daycare closures take people out of the plan.
- Extra slots
- A sick day at home, a doctor visit or babysitting, added when it comes up.
- Fair share
- Points per duty over the last four weeks, with your own target split if 50/50 isn't how you share.
- Helpers and daycare
- Grandparents and the au pair are planned without counting towards the score, and daycare is part of the week.
- Oura ringsEarly access
- Night wake-ups read from the parents' rings, a morning card that asks whose night it was, and each parent's own nights.
Sleep
Know the rhythm, then plan the day around it.
- Wake window
- How long the baby has been awake against the range for the age, with a heads-up for the evening second wind.
- Nap times from your baby's rhythm
- Start from the standard for the age, or let the app learn from your fully logged days. It suggests the switch once your baby's rhythm predicts better.
- Night wake-ups
- Counted every night from the sleep log.
- Sleep debt
- The last week's daily average against what is typical for the age.
- Patterns
- A consistency score, typical nap times, and the places where naps last longest.
Health and growth
For the fever at 3am and the next check-up.
- Sick log
- Temperatures (rectal, ear, forehead, armpit or oral), 12 common symptoms, medicines and notes. An illness starts with the first entry and counts its days.
- Dose spacing
- Shows when the next dose is OK, by the gap you enter from the leaflet. The app never suggests a dose.
- Fever guidance
- Tells you plainly to get medical advice when a reading crosses the NHS and AAP thresholds for the age.
- Temperature chart
- The fever over time, with every dose marked on it.
- For the doctor
- A plain summary of the illness to send or read out on the phone.
- Growth charts
- Weight, length and head circumference on the WHO curves from P3 to P97, plus weight for length.
- Milestones
- 32 milestones in 7 areas with the age they usually come, and your own with a photo.
Assistant and tools
Help that has read the log, and a few tools for the nursery.
- Baby Assistant
- Ask anything about your baby. It reads the last eight weeks of the log first and answers with your baby's own numbers.
- Several chats
- Start a new chat or carry on an old one, each named after its first question.
- Notes for the assistant
- Allergies, being born early, how you do things: written once, read before every answer.
- Daycare import
- Screenshots of the daycare app's feed become naps, meals and diapers you check before saving.
- Sound meter
- How loud the room is in decibels, and what level is OK for a baby.
- Camera baby monitorIn development
- Live video and sound from a small camera you pair over Bluetooth.
From the family that makes it
We're Fabian and Caro, and Fabian builds BabyTracker for our own family first. Since January, five of us have logged 1,452 sleeps, 1,516 feeds and 858 diapers for our son, and asked the assistant 108 questions.
“I built it for our own nights. The plan says whose night it is, the morning card shows how it went, and the fair share means neither of us has to keep score.”
“In his first months I asked the assistant 45 questions, and every answer came with his own numbers. Now the nap times follow his rhythm, and daycare's day gets into the log from a screenshot.”
Questions parents ask
- What does it cost?
- Nothing during the private beta. Everything in the app is open, with three questions a week to the assistant.
- Which phones does it run on?
- iPhone and iPad with iOS 17 or later. There is no Android app.
- Who can join our family?
- Anyone you send an invite link: your partner, grandparents, the nanny or the au pair. Each one joins as parent, caregiver or viewer.
- We have more than one child. Does that work?
- Yes. Each child has their own log, and you switch between them in Settings.
- Do we need an Oura ring or the camera?
- No. The ring features are in early access and the camera is still in development. Everything else works without them.
- Does the assistant read our log?
- Only after you say yes on its first screen, and only to answer the question you ask. For the answer, it sends the log to OpenAI.
- Can we delete everything?
- Yes. Delete your account in Settings under Account. If you are the only member, your family's log goes with it.
Your family’s data
- Only your family can see it, and joining takes an invite.
- Stored in the EU.
- No ads, and we never sell data.
- The assistant only reads the log after you say yes.
Share the days and nights
BabyTracker is free while it's in private beta. Ask for an invite and we'll send you a TestFlight link for your iPhone.
Needs an iPhone with iOS 17 or later.