Child Growth Chart: Percentile

Plot every height and weight on the official WHO percentile curves and see the answer at a glance — kept privately on your iPhone.

A private growth journal for your children. Every height and weight you enter is plotted on the official WHO growth chart, so you can see which percentile curve a measurement sits on and how the line has moved between visits. What the numbers mean for your child is a conversation for your pediatrician — this app keeps the record for it.

Most trackers plot a bare line and leave you guessing what it means. Child Growth draws your child's line over the real WHO Child Growth Standards (2006): the P3, P15, P50, P85 and P97 reference curves, sex-specific, from birth to five years. Percentiles are computed with WHO's own LMS formula and verified against WHO's published tables — not approximated.

WHAT YOU GET • Open the app and the latest height, weight and WHO percentile for each child is already on screen — no digging • A growth curve drawn over the WHO P3–P97 bands • Exact percentiles from the WHO 2006 standards, birth to 60 months, for both height and weight • Growth velocity in cm per month between check-ins • A dated ledger of every measurement in cm and kg, with notes like "annual check-up", editable any time • A shareable growth report: dates, values and WHO percentiles in one clean summary for the doctor

PERFECT FOR • Parents of newborns and toddlers who want the numbers written down between check-ups • Families with several children who need each history kept separate • Bringing a complete, dated growth record to every pediatric visit • Anyone who prefers a calm, paper-quiet journal to a noisy baby-tracker feed

WHY NOT JUST THE DOCTOR'S CHART? The clinic measures your child a few times a year, and the chart stays in their system. Child Growth lets you add a measurement any evening at home, see immediately where it lands on the WHO curve, and walk into the next appointment with the full history in hand.

Child Growth is a record, not medical advice. It does not diagnose, screen for or rule out any condition — growth questions belong with your pediatrician.

PRIVATE BY DEFAULT Every profile and measurement is stored only on your iPhone. No account, no server, no ads, no tracking.

FULL ACCESS Every screen is behind one purchase — there is no free tier, no advertising and no account. Choose a Weekly or Yearly auto-renewing subscription, or a one-time Lifetime purchase.

Payment is charged to your Apple ID account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the end of the current period. You can manage and cancel your subscriptions in your App Store account settings after purchase. The Lifetime purchase is one-time and does not renew.

Add today's measurement and see where your child sits on the WHO curve tonight.

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