Best Baby Milestone Apps UK (2026): Development and Growth Trackers Compared
Milestone apps sell a lovely idea: a running record of every first, safely kept, neatly plotted. Some deliver exactly that. Others deliver a stream of push notifications telling you what your baby "should" be doing this week, which is a different product entirely — and not always a kind one at 4am.
Here's an honest look at what these apps actually do, and how they relate to the record that matters most in the UK: your red book. Disclosure: we make one of the apps below (CubTrack).
The short answer: if you want milestones plus growth centiles in the same place as your feed and sleep logs, CubTrack Plus covers both (milestones and WHO growth charts, £4.79 a month on Android, £4.99 on iPhone). If you want structured developmental activities rather than a record, Kinedu is the most complete. If you want a keepsake baby book rather than a tracker, Tinybeans fits better. And a tracking app complements your red book rather than replacing it; if you want the red book itself on your phone, that's the eRedbook, a free NHS-backed digital version.
Three different things all called "milestone tracking"
Work out which one you actually want before you install anything, because these apps are not interchangeable:
- A record. You log first smile, first roll, first tooth, first steps, with dates and photos. The value is the archive.
- A curriculum. The app suggests activities to encourage the next skill. The value is the prompting.
- A measurement chart. Weight, length and head circumference plotted against centiles. The value is spotting a trend.
Most parents want the first and third, and end up with an app that mainly does the second. Deciding in advance saves a fortnight of notifications about what your baby isn't doing yet.
Milestone and growth apps compared
| App | Type | Growth centiles | Free version | Paid from |
|---|---|---|---|---|
| CubTrack | Record + measurement, alongside feed/sleep/nappy logs | Yes — WHO growth charts with centiles | Free tier covers logging; milestones and growth charts need Plus | £4.79–£4.99/mo |
| Kinedu | Curriculum — daily activity plans by age | No | Limited free activities | £3.99/mo or £29.99/yr; 7-day free trial |
| Tinybeans | Record / keepsake, family photo sharing | No | Yes — 20 uploads a month, 5GB storage | Tinybeans+ £7.99/mo or £69.99/yr; two-week free trial |
| The Wonder Weeks | Developmental leap predictions | No | Free to download | In-app subscription (Google Play lists £3.99–£29.99) |
| Baby Tracker (Nighp) | Basic milestone log within a general tracker | Yes — free WHO growth charts with percentiles, 0–5 years | Yes, with ads | £4.99 one-off to remove ads; Plus £5.99/mo or £49.99/yr |
Prices from the UK App Store and Google Play, checked 14 September 2026.
We've left out Qeepsake, a baby journal that works through text-message prompts, because it's only offered to families in the US and Canada.
How app centiles relate to your red book
This is where UK parents get confused, and where most apps are unhelpfully silent.
Your red book — the Personal Child Health Record — contains the UK-WHO growth charts, and your health visitor plots weight (and sometimes length and head circumference) on them at reviews. It's your official parent-held record of your child's health and development. An app's chart is a convenience copy. The apps in this list that plot centiles (CubTrack and Baby Tracker) use the WHO growth standards, while the red book uses the UK-WHO charts.
Two things worth knowing:
- The centile line matters more than the number. A baby steadily on the 25th centile is doing fine. What health professionals look at is whether a baby drifts across centile lines over time, not which line they sit on. Measurements may go up or down by one centile line; crossing two is less common, and if that happens the NHS advice is to talk to your health visitor.
- Clinic weights make the better record. NHS guidance is that after the first 2 weeks, a baby should be weighed no more than once a month up to 6 months of age, no more than once every 2 months from 6 to 12 months, and no more than once every 3 months over the age of 1. Bathroom scales aren't made for weighing babies, so use app charts to record the weights taken at your clinic appointments, not to generate new ones.
Used that way, a growth chart app is genuinely useful: it puts the trend in front of you between appointments instead of leaving it in a book in a drawer.
The case against milestone notifications
Worth saying plainly. Milestone ranges are wide, and normal is broad. "Sitting unsupported" spans roughly 4 to 9 months; first words span most of the second year. An app that tells you weekly what your baby should be doing converts that wide, forgiving range into a deadline — and for a lot of parents that's a source of anxiety rather than information.
If you find yourself checking whether your baby is "behind", the app is doing harm. The people who can actually answer that question are your health visitor and GP, who see your baby and have the full picture. The developmental reviews your health visitor offers exist precisely so that this isn't your job to assess alone. Our month-by-month milestones guide gives the ranges with the context, which is the version worth reading.
Which should you choose?
If you already track feeds and sleep, adding a separate milestone app usually fails — two apps means neither gets used. Better to use one that does both, so the first roll gets logged in the same place as the morning nap.
If you want a keepsake, pick a record app with good photo handling and export, and check you can get your data out. A baby book you can't print is a subscription, not a keepsake.
If you want activity ideas, a curriculum app is the right category — just treat the schedule as a menu rather than a plan.
If growth is your actual concern, what you want is the centile chart and your health visitor, in that order of convenience and reverse order of authority.
Where CubTrack fits
CubTrack Plus (£4.79 a month on Android, £4.99 on iPhone) includes milestone tracking and WHO growth charts with centiles alongside the feed, sleep and nappy logs — and the PDF report you can take to a health visitor appointment is free for everyone, which is the moment the whole record earns its keep. The free tier covers everyday logging with feed and sleep predictions, so you can see whether the habit sticks before paying for the milestone side.
Related reading
- Baby milestones month by month
- Best baby tracker apps UK
- Best free baby tracker apps UK
- How to track feeds, sleep and nappies
- Baby weaning schedule UK
Frequently asked questions
What is the best baby milestone app in the UK?
It depends which job you want done. For milestones and growth centiles alongside everyday feed and sleep logs, CubTrack Plus covers both in one place. For structured developmental activities, Kinedu is the most complete. For a photo keepsake to share with family, Tinybeans fits better than either.
Do milestone apps replace the red book?
A tracking app doesn't. The red book is your official parent-held record of your child's health and development, and some areas also offer the eRedbook, a free NHS-backed digital version of it. A milestone or tracking app complements either one: it lets you see the trend between appointments and bring a clear record with you.
Should I worry if my baby misses a milestone in the app?
Not on the app's say-so. Milestone ranges are wide and apps compress them into single dates. If you have a genuine concern about your baby's development, speak to your health visitor or GP — that's what the developmental reviews are for.
Is there a free baby milestone tracker app?
Several apps include basic milestone logging free, and growth charts and photo storage aren't always paid extras: Baby Tracker (Nighp) has WHO growth charts with percentiles at no cost, Tinybeans' free plan includes 5GB of photo storage, and the NHS-backed eRedbook, with its weight and height charts, costs nothing. In CubTrack, milestones and growth charts are part of Plus. Our guide to free baby tracker apps covers where each app draws the line.
Can I track percentiles at home?
You can record them, but don't generate them at home. After the first 2 weeks, NHS guidance is to weigh a baby no more than once a month up to 6 months of age, and less often after that. Log the weights taken at your clinic or health visitor appointments and let the app chart those.
