The complete child health record
Plot weight, length and head circumference on the official UK-WHO 0–2 year centile charts. Immunisations, screenings, health reviews and milestones — all in one tap.
The Personal Child Health Record, reimagined.
Your baby's whole story, in one calm place.
BloomBook keeps your baby's Personal Child Health Record on your phone — UK-WHO growth charts, immunisations and milestones — alongside a gentle daily tracker for the feeds, sleeps and nappies in between.
Coming soon to the App Store iPhone · iPad · Mac · Apple Watch · Vision Pro
Weight
Latest measurement
Ivy is tracking the 60th centile — no mental arithmetic.
Private by design — no account, no ads
Works at 3am, works offline
Real UK-WHO centile charts
Free, no in-app purchases
What's inside
Two layers of your baby's life, finally in one app.
The health record gives you the milestones. The daily tracker gives you the rhythm. BloomBook is the only place they meet.
A calm daily tracker
Log feeds, sleeps and nappies in a single tap — the companion that's open at 3am. Built to be quiet and quick when you have one hand free.
See what's typical
Your daily sleep and feed totals are plotted against typical-range bands for your baby's age, drawn from NHS guidance — calm when you're inside the range, clear when you're not.
Corrected age, built in
Born early? Enter your baby's gestation once, and every measurement is plotted against corrected age automatically — the same adjustment your health visitor uses.
Apple Watch & widgets
Log a feed from your wrist. Glance at the next nap, the last nappy, or today's totals straight from your Home Screen — without unlocking your phone.
Private by design
No sign-up, no analytics, no third-party trackers. Everything stays on your device. Turn on iCloud and it syncs only to your own account, end-to-end encrypted.
How it works
From first weigh-in to first steps.
01
Add your baby
Name, birth date and gestation. Corrected age is handled automatically from the start — twins and siblings welcome.
02
Log the day
Feeds, sleeps and nappies in a tap — from your phone, your watch, or a Home Screen widget. Quick enough for one tired hand.
03
Watch it take shape
Your measurements fill in the UK-WHO centile curves, and your daily logs show how each week compares with the typical range for your baby's age.
04
Keep the record
Immunisations, screenings, reviews and milestones in one record. Export the whole thing as a PDF whenever a GP or grandparent needs it.
The difference
Built for the UK, not adapted from abroad.
Most baby trackers follow US growth charts and US schedules. BloomBook is built around what a UK parent actually meets: the UK-WHO centile charts, the UK childhood immunisation schedule, the NHS health-review timeline, and weekly guidance drawn from NHS and NICE sources.
BloomBook is a record-keeping tool — it shows you the published UK guidance, never medical advice.
Feeds today
avg 132 ml · every 3h 10m
Sleep total
longest stretch 4h 20m
Nappies
5 wet · 2 dirty
Daily totals shown against the typical NHS range for Ivy's age — 12 weeks.
Good to know
Questions, answered.
Is BloomBook free?
Yes. BloomBook is free to download, with no in-app purchases, no subscriptions and no ads. It's built as a personal tool for parents, not a business.
Is my baby's data private?
Completely. There's no account and no sign-up. Everything you enter is stored on your device. If you switch on iCloud, your data syncs only to your own private iCloud account, end-to-end encrypted — there are no BloomBook servers, no analytics and no third-party trackers. See the Privacy Policy for the full detail.
Does it work for premature babies?
Yes — corrected age for prematurity is built in from the start, so your baby's measurements line up with the same UK-WHO centile curves your health visitor uses.
Is BloomBook a medical device?
No. BloomBook is a private record-keeping and tracking tool. It presents publicly available UK-WHO growth data and the UK childhood immunisation schedule in a convenient format — it does not provide diagnosis or medical advice. If you have any concern about your baby's health or development, speak to your health visitor or GP, or call NHS 111.
Does it work offline?
Always. Every feature works without a connection — the growth charts, immunisation schedule and reference data are all bundled into the app. Nothing needs the internet to load.
Can I track twins or more than one child?
Yes. Switch between siblings instantly — every measurement, jab and milestone stays scoped to the right child. No more flipping between two paper books.
Which devices does it support?
BloomBook is built natively for iPhone, iPad, Mac and Apple Vision Pro, with a companion Apple Watch app and Home Screen widgets.
When does BloomBook launch?
BloomBook is in active development and heading to the App Store. Leave your email and we'll let you know the moment it's available — no other mail, ever.
Be there when BloomBook blooms.
We'll send one email — the day it lands on the App Store. Nothing else.