Real family data
What babies have actually done by month 4
For each milestone, the share of babies whose families had recorded it by the end of month 4.

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First 3 chapters free · iOS & Android
Real entries, not textbook ranges.
- First smile98.2%
- First laugh88.9%
- Rolling over74.4%
- Sleeping through the night68.5%
- First solid food23.6%
- Sitting up6.7%
- First tooth6.1%
- Saying mama2.7%
- Saying dada1.7%
- Crawling0.6%
- Standing up0.4%
- First steps0.3%

The Baby Notebook app
Whenever it happens, it is worth keeping.
Every age on this page is a parent writing down what their own baby did, whenever they did it. Baby Notebook makes it easy to keep each one as it comes, from bump to first birthday. Free to download, and the first three chapters of every book are free.
“I have loved going back on my camera roll and looking at all those amazing milestones... and putting them in my baby book.”
★★★★★ 4.8 average · 300,000+ downloads
