Track & Log
Milestones, baby leaps, WHO growth percentiles, teeth, sleep and nutrition in one gentle baby development tracker showing where your child is today with clear CDC milestone averages instead of pressure.
Your all-in-one baby development tracker & parenting app
Every milestone,
beautifully remembered.
A gentle baby milestone tracker and private tracker app to log growth, discover age-perfect baby activities, and share playtime memories with your whole family.
🎁 First 100 on the waitlist get the 2-Year Family plan free →
- 🔒 Encrypted baby log & photos
- 🌍 7 languages
- 📊 CDC milestone & WHO growth data
0expert-curated milestones
0activities & excursions
0areas of development
0languages
Built for your baby and toddler — the first 1,000 days and beyond
One parenting app for everything your child is becoming
Play & Activities
216 curated baby activities: sensory play, playtime ideas, international lullabies, music discovery, books and family excursions linked to skill development for your infant or toddler.
Share & Connect
Invite family with a simple link. They cheer with comments and reactions, while your baby log photos stay end-to-end encrypted without social media.
Today view
Your day, already curated
Open the tracker app and focus on what matters today: current milestones, daily baby activities, baby leaps, and playtime ideas for your growing child.
- "Up next" milestone with typical timing
- Daily baby activities & playtime suggestions
- Baby leaps forecast: understand why fussy weeks happen
Milestones & growth
Know what's next without the worry
Every milestone comes with clear benchmarks aligned with CDC milestone guidance and WHO growth charts: typical starting week, median, and normal range for infants and toddlers.
- 131 CDC milestone benchmarks across 11 areas
- WHO growth charts with percentile scrubbing
- Progress dashboard & baby development tracker
Memories & privacy
A private baby log for your family
Keep a complete baby log of photos and videos for every milestone, playtime moment, and monthly memory. End-to-end encryption seals your media on your device before upload.
- End-to-end encrypted photo & video baby log
- Weekly gallery, monthly memory questionnaires
- GDPR-compliant parenting app, no ads, no data selling
Alex, your AI companion
Answers you can actually trust
Ask Alex questions about sleep, feeding, leaps, or development. Answers are tailored to your baby's exact age so recommendations always fit this specific week. For medical concerns, Alex will always point you to your pediatrician.
- Dual-AI verified answers
- Knows your baby's current developmental stage
- Available day and night, including 3 a.m. feeds
Free tools (no account needed)
Try our free baby milestone tracker
Enter your baby's name and birthdate to explore developmental milestones, baby activities, and playtime ideas. Try up to 5 checks per day for free.
3 baby activities for today
Age-appropriate sensory play, song, and excursion ideas for daily playtime.
Baby milestone check
Key milestones reached around this age based on CDC milestone guidelines.
Every baby develops at their own pace. Typical weeks reflect research medians rather than strict deadlines. These tools do not replace medical advice.
The family journey
Grandma is 800 km away.
She never misses a first.
BabyNook turns your baby's development into a shared journey. Invite the people you love with a single link, without public social media posts or lost chat photos.
1
Invite with one link
Grandparents, godparents, aunts and friends join in seconds on any device, in their own language.
2
They follow along, live
First smile, first tooth, first steps: family sees new photos and milestones the moment you share them, and can look back through the whole journey any time.
3
Everyone celebrates together
Comments and reactions on every moment, notifications for the big firsts, and a digest so nobody has to check every day. Distance stops mattering.
You stay in control of permissions and can adjust access at any time. Photos remain end-to-end encrypted for everyone, unlocked only by the key shared within your family circle.
Baby Album & Milestone Log
Memories to pass down
when they have their own baby.
Imagine sitting together years from now, opening their baby log album as your toddler grows up to become a parent themselves. Every first smile, milestone, and photo preserved exactly as it happened.
Would you otherwise remember the exact moment your baby "clapped when excited" during playtime for the first time? Our baby milestone tracker remembers and documents it with you in a nice, easy way.
BabyNook turns your baby's progress into a timeless photo album and baby log. Track every step over time in your favorite parenting app, creating a record your family will treasure forever.
A look inside
Beautiful on every screen
Good to know
Frequently asked questions
Their childhood happens once.
Start remembering it today.
Free to start. No credit card. Works on any device.
Oma Ute: „Mein großes Mädchen!" ❤️