BIRTH TO FIVE

BUILT BY CHILD SPECIALISTS

The first five years, mapped.

ABOUT

Cairn holds over 850 research-backed developmental milestones, written the way they actually look — not in clinical shorthand.

You tell us what your child is doing. For anything they haven't picked up yet, you get guided support: the specific skill, a way to interact that opens it up, and the everyday moments where it naturally fits.

Yes, there's a milestone tracker. It doesn't create anxiety, because nothing is ever just flagged and left there. Every gap comes with exactly what to do about it.

Seven developmental domains

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Over 850 milestones

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Plain language, always

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Seven developmental domains · Over 850 milestones · Plain language, always ·

How it Works

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and diagonal lines.

    Start with a picture

    A 30-minute screener, in plain language, answered by you. It maps your child across seven areas of development — because most children aren't in the same place across all of them.

    Make It
  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and half circle lines.

    Get one plan a week

    A skill to notice, an interaction strategy, everyday moments where it fits, and one activity using what's already in your house.

    Make It
  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and circle lines.

    Mark what you see

    Over 850 milestones written as they look at your kitchen table. Tag what you observe. Next week adjusts.

    Make It
  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and diagonal lines.

    Know when to ask

    If something looks delayed, Cairn tells you once, clearly, with what to do next — including how to request a free evaluation. Then it goes back to being useful.

    Make It

WHAT SETS US APART

Most apps stop at telling you what your child should be doing. Cairn tells you what to do next.

Track milestones across all seven areas of development and always know where you stand — whether your child is right on track or something needs attention. Either way, there's a next step waiting.

Cairn follows your child the whole way, from birth through age five, adjusting as they grow. And it teaches you along the way. Not just this week's activity, but why it works and how to use it everywhere.

That's the goal: not a parent following instructions, but a parent who knows how to support development in any moment.

COMING TO iOS and Android

Cairn is in development. Be the first to know when it's ready.