● 5–10 minutes · adapts to your child's age

Know exactly where your baby is — and what comes next.

A validated developmental check-in. Not a pass/fail checklist — a clear read of where your child is in the sequence of development, and the skills opening up now.

Start the assessment →See the science

First one free in the Kinedu app · premature ages corrected automatically.²

Example · 7-month-old

Developmental profile

✓ on track

Pace of development

slower

faster

the green band is the healthy range

Object exploration

7 of 12

Babbling

focus

Secure attachment

ahead

One number, on purpose. In the first year all areas move together — so a single pace reads honestly, where four separate scores would just add noise.³

Why this isn't another milestone checklist

A validated instrument — not a list someone wrote down.

Four developmental areas are assessed: Physical, Cognitive, Language & Literacy and Social & Emotional — the same four the Stanford analysis is built on.³

skills across 4 developmental areas, birth to 4 years¹

0.996

Cronbach's α — internal consistency, from 2,135 caregivers²

422

observable milestones in the validated instrument¹

67%

of variance explained by the model — above the 60% bar in social science¹

21,861

children in the Stanford analysis of how development unfolds³

P75

each skill's expected age set at the 75th percentile, per AAP practice²

11M

families have used Kinedu⁴

FOI

member of Frontiers of Innovation at Harvard's Center on the Developing Child⁵

Milestone lists are built from what a committee agrees on. This instrument was built from what hundreds of thousands of real children actually did — then tested for reliability, validated as a psychometric scale², and analyzed with Stanford's Language and Cognition Lab to understand how developmental areas relate to each other over time³.

The finding that changed how we measure

In the first year, developmental areas move together so tightly that being ahead in one means being ahead in all of them. That coupling drops sharply across the first 12 months, and the areas begin to follow their own timelines.³ It's why a single, clear number is the honest read early on — and why separate area scores only start to mean something later.

The skills map

In the first year, everything develops as one thing. Then it expands.

Every skill has a window — the age range where it's actively developing. Early on those windows move together so tightly they behave like a single process. Around a year, they separate and each area starts keeping its own time.³

Skills developing at once

Kinedu Skills® map · 49 validated skills · 0–48 months¹

open at 7 months

first year: one coupled process Physical Cognitive Language Social-emotional

How it works

Three steps. No training needed.

Answer what you see

Plain questions about what the child already does — written to be answered by any caregiver, not a specialist.²

Get a real profile

Not a score out of ten. Where the child sits in the sequence, what's strong, and what's emerging next.

Know what to do

The profile points at the skills opening now — turning "are they behind?" into "what are they building?"

Why the check-in changes as they grow

Some skills hand off. Others accumulate.

A skill's window isn't just when it appears — it's when it's actively being built. Some skills are stepping stones that get replaced by something more advanced. Others, once gained, stay for life. The check-in knows the difference, and stops asking about what a child has already moved past.

hands off →

Babbling · 1–9 months

Babbling is built early, then hands off to First words (11–30 months). Babbling doesn't disappear because something went wrong — it recedes because it has been replaced by speech. Once a child talks, we stop asking whether she babbles.

accumulates ↗

Walking · 15–39 months

Walking has no successor. Once a child walks she keeps walking — the skill refines into running, stairs and jumping rather than being handed off. Its window stays open far longer, because there's always a next level of the same thing.

This is why a check-in beats a checklist: a list keeps asking about milestones a child has already outgrown. The check-in only ever asks about the windows that are open right now.

What you get

A roadmap, not a report card.

1A clear profile of your child — pace, strengths, and what to focus on now.
✓Anxiety turned into direction: “what is she building next?” instead of “is she behind?”
↗A summary you can share with your pediatrician at the next visit.
★The science behind every result — the why, not just the what.
⌘Born early? Ages are corrected automatically using the AAP equation.²

Example · 7-month-old

Developmental profile

✓ on track

Pace of development

slower

faster

the green band is the healthy range

Object exploration

7 of 12

Babbling

focus

Secure attachment

ahead

One number, on purpose. In the first year all areas move together — so a single pace reads honestly, where four separate scores would just add noise.³

Pricing

Start where you are.

In the app

Free first assessment

Your first full assessment, free
Personalized daily activities
Milestone tracking as they grow

Get the Kinedu app

Just the assessment

$9.99 one assessment

One full developmental profile
Strengths and what comes next
Shareable summary for your pediatrician

Start the assessment

Track the whole year

$39.99 per year

Monthly check-ins for a year
See how the pace changes over time
Every profile saved and comparable

Get monthly check-ins

Development only means something over time — monthly check-ins are how you see the pace change, not just a single snapshot.

What this is — and isn't. The Kinedu Assessment is a developmental surveillance tool: it surfaces a child's strengths and next steps. It is not a diagnostic instrument and does not identify developmental conditions or delays.² If you have concerns about a child's development, speak with a pediatrician or qualified professional.

Sources. ¹ Kinedu Initial Assessment — validated instrument: 49 skills, 422 milestones, ages 0–48 months; total variance explained 67.46% (a TVE above 60% is considered a sound basis for a model in the social sciences). The Kinedu Skills® map has since been extended beyond this set; figures on this page refer to the validated instrument. ² Kinedu Initial Assessment scale construction & psychometric analysis — internal validation study, N=2,135 caregivers of children 0–55 months; Cronbach's α = .996; ages of acquisition set at the 75th percentile following AAP practice; premature ages corrected with the AAP equation; items written for untrained caregivers; milestone set drawn from AAP and CDC frameworks and peer-reviewed literature. Surveillance instrument — explicitly not for diagnosis. ³ Stenhaug, B., Ram, N., & Frank, M. C. — The structure of developmental variation in early childhood (Stanford), analysing 21,861 children and 177,934 observations from Kinedu app data; within-person coupling between developmental factors decreases markedly across the first 12 months. ⁴ Kinedu, families served to date (kinedu.com). ⁵ Kinedu is a member of the Frontiers of Innovation community at Harvard's Center on the Developing Child, and a founding member of the Aceleradora de Innovación para la Primera Infancia, an FOI innovation cluster for Mexico.
Illustrative figures in sample screens are examples, not results from any specific child, group or school.