WHO Growth Curves
Official international standards
Graphs use World Health Organization growth curves. The same ones your pediatrician uses.
Track weight and height with official WHO growth curves. Pediary is the free app that helps you monitor your child's development with simplicity and precision.
100% Free, WHO Standards
Used by thousands of parents to track growth.

You're at the pediatrician. They ask 'How much did they weigh at the last check-up?' and you... search through papers, old notes, the missing booklet.
"Was it 7.2 kg or 7.5 kg? And the height? Wait, was that at 4 months or 5?"
You're not alone. Every parent wants the best, but keeping track of everything is difficult.
The App That Makes Growth Simple and Clear
With Pediary, you enter weight and height in seconds. The app automatically calculates WHO percentiles and shows you if everything is progressing well.
Features
Official international standards
Graphs use World Health Organization growth curves. The same ones your pediatrician uses.
Instantly understand if everything is fine
Enter weight and height. The app calculates percentiles and shows you where your child stands compared to WHO standards.
See growth at a glance
Colored lines showing weight and height trends over time. Growing steadily? You see it immediately.
All measurements in one place
Every weight, every height, every head circumference (if you want). Organized by date, always available.
Share with pediatrician
Create a PDF report with growth graphs and tables. Perfect to show during visits or send via email.
Track multiple children simultaneously
Each child has their own profile, curves, and percentiles. Switch between them with one tap.
Enter child's name, date of birth, and sex. The app prepares personalized WHO curves.
After each visit or when you weigh your child at home, enter the values. The app saves everything automatically.
Open the Growth section. See percentiles, curves, trends over time. Everything clear, everything simple.
Percentiles indicate how your child grows compared to other children of the same age and sex. If they're at the 50th percentile for weight, it means they weigh more than 50% of children and less than the other 50%. WHO (World Health Organization) provides international reference curves based on studies of thousands of children.
Yes. You enter weight, height, and child's age. Pediary automatically calculates WHO percentiles and displays them on graphs. No manual calculations needed.
Absolutely yes. WHO curves cover from birth (0 months) up to 5 years. You can record weight and height from day one.
Percentiles are references, not judgments. Every child is unique. If you have concerns, talk to your pediatrician. The app helps you track, but only a doctor can assess overall health.
Yes, graphs show weight and height trends over time. You'll see lines that follow (or cross) WHO curves. Much clearer than a table of numbers.
Yes, everything is free. WHO graphs, percentiles, complete history, PDF export. No hidden costs, ever.
We use World Health Organization growth curves. The same data your pediatrician uses.
Percentiles calculated with precision. No approximations, no 'more or less'.
Your child's growth measurements stay on YOUR device. Total privacy.