Every milestone,
beautifully remembered.

BabyNook is an all-in-one baby development tracker and parenting app for your infant and toddler years. It tracks milestones, baby leaps, WHO growth charts, and CDC milestone benchmarks, suggests age-appropriate baby activities for daily playtime, and creates a private baby log for the whole family.

Yes, you can start using our baby milestone tracker completely free with no credit card required. The free plan covers milestone tracking, daily baby activities, and the family journal. Premium plans add unlimited photo storage in your baby log, the Alex AI companion, and more.

BabyNook includes 131 milestones aligned with CDC milestone standards across 11 areas of development: gross and fine motor skills, communication, cognitive, social-emotional development, nutrition, teeth, sleep, and self-care for both baby and toddler stages.

Most babies smile socially around 6–8 weeks, sit without support around 6–8 months, crawl around 7–10 months, and take first steps around 9–15 months, but the normal range is wide and every baby has their own schedule. BabyNook shows you the median and typical range for every skill, and our free milestone check tells you what to expect for your baby’s exact age.

Baby leaps are predictable mental development phases in the first 20 months when a baby’s perception of the world changes. BabyNook acts as your baby development tracker to show which leap your baby is in and how to support them through fussy phases.

BabyNook includes 216 curated baby activities for playtime, such as sensory play, music discovery, reading, and excursions. Every day the tracker app recommends activities matching your baby or toddler’s current age and developmental milestones.

Yes, that’s at the core of BabyNook. Invite grandparents, godparents, aunts, and friends with a single link. They see new photos and milestones in your shared baby log the moment you post them, can leave comments, and receive a digest so they never miss a first.

As private as technology allows: BabyNook supports end-to-end encryption for photos and videos in your baby log. They are encrypted on your device before upload, and only people you invited hold the key, so not even we can access them. BabyNook is a GDPR-compliant parenting app that shows no ads and never sells data.

Alex is a baby-development assistant built into BabyNook. Every answer is tailored to your baby’s age and progress, so advice fits this week instead of a generic average. For anything medical, Alex will always point you to your pediatrician.

BabyNook is fully available in seven languages: English, German, Spanish, French, Portuguese, Ukrainian, and Arabic (with right-to-left support). Every family member can use the app in their own language, so Grandma reads the same milestone in German that you shared in English.

BabyNook runs in any modern browser today, and native iOS and Android apps are on the way, with the same account, same data, and same encrypted photo baby log everywhere. Start on the web now and pick up on your phone later.

No. BabyNook informs, organizes, and reassures, and timing data reflects published developmental research, but it does not replace professional care. If you are ever concerned about your child’s development, talk to your pediatrician; the app itself will remind you of exactly that.

Always. Your baby’s journey belongs to you: you can export your data and you can delete your account and every photo permanently at any time, in line with GDPR. No lock-in, no dark patterns.