Celebrate Every Milestone
Based on trusted CDC guidance across four areas of development, from 2 months to 5 years. Check off each milestone as your baby reaches it.

Gentle Milestone Guidance for Parents
Four Areas of Development
Follow milestones across social and emotional, language and communication, cognitive, and movement and physical development — a full picture of how your baby is growing.
Age-by-Age Timeline
A gentle vertical timeline organized by age, with checkpoints from 2 months to 5 years, so you always know what to look for at every stage.
Check Off Every Milestone
Tap to celebrate each milestone as your little one reaches it. There's no score and no grade — just a joyful way to mark the moments that matter.
Based on Trusted CDC Guidance
Every milestone comes from the CDC's 'Learn the Signs. Act Early.' program. Each age checkpoint links to the official CDC page so you can read more.
Guidance, Not Diagnosis
Milestones help you know what to look for and start conversations — they don't diagnose or replace your pediatrician. Talk to your doctor if you ever have questions.
Frequently Asked Questions
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