Growth Tracker
Watch your baby grow,one gentle milestone at a time
Track your baby’s height, weight and head circumference against trusted WHO and IAP growth standards — and see clear, reassuring trends instead of confusing numbers.

A calmer way to follow your baby’s growth
The One Baby Growth Tracker turns every weigh-in and check-up into a clear, friendly picture of how your baby is developing. Instead of trying to remember last month’s numbers, you log a measurement once and instantly see where your baby sits on standardised growth curves.
Every chart is personalised to your baby’s birth date and sex and plotted against WHO and IAP references, so the trend you see reflects healthy growth for a baby just like yours — not a generic average.
What you get
Thoughtful by design, useful every day
Height & length tracking
Log recumbent length or standing height and watch a smooth growth curve build over weeks and months, not just isolated dots.
Weight tracking
Record each weight and see steady gain at a glance, with percentile context so a single low or high reading never causes panic.
Head circumference
Follow head growth — an important early indicator in the first two years — alongside height and weight on one timeline.
Growth trends & percentiles
See the direction your baby is trending in, which matters far more than any one measurement on any one day.
Gentle, non-alarming insights
We highlight meaningful changes calmly and always suggest talking to your paediatrician rather than self-diagnosing.
Everything in one timeline
Growth sits beside vaccinations, feeding and memories, so your baby’s whole story lives in a single, private place.
How it works
Simple, step by step
- 01
Add your baby
Enter birth date and sex once. Every chart is then tailored to your baby automatically.
- 02
Log a measurement
After a weigh-in at home or the clinic, add height, weight or head circumference in seconds.
- 03
See the curve
One Baby plots your entry on WHO/IAP growth charts and updates the trend instantly.
- 04
Read the trend
Review the direction over time and any gentle notes about changes worth watching.
- 05
Share with your doctor
Bring a clean, complete history to your next visit instead of scattered notes.
Why growth tracking matters
In the first year a baby roughly triples their birth weight and grows about 25 centimetres. Growth is one of the clearest signals that feeding, sleep and overall health are on track — which is exactly why paediatricians plot it at every visit.
What matters is not a single percentile but a consistent trend. A baby who steadily follows their own curve is usually thriving. Sudden flattening or jumps are worth a conversation with your doctor, and One Baby helps you notice them early, gently, and without anxiety.
FAQ
Frequently asked questions
Which growth standards does One Baby use?
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We plot growth against the World Health Organization (WHO) child growth standards and the Indian Academy of Paediatrics (IAP) references, personalised to your baby’s age and sex.
How often should I measure my baby?
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Weight is commonly checked at each well-baby visit, while height and head circumference are usually measured monthly in the early months. You can log as often as you like — trends become clearer with regular entries.
My baby is in a low percentile. Should I worry?
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Not necessarily. Healthy babies grow along a wide range of percentiles. What matters most is that your baby follows their own curve consistently. Share any concerns and your One Baby history with your paediatrician.
Can I track more than one child?
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Yes. You can maintain a separate growth timeline for each child, each with its own personalised charts.
Is my baby’s growth data private?
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Your records are yours. One Baby is built privacy-first and never sells your family’s data.
Does it replace my paediatrician?
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No. The Growth Tracker helps you understand and organise measurements, but it is not a medical diagnosis. Always follow your doctor’s guidance.
One app for smarter parenting
Growth Tracker is just one part of One Baby. Join early access and be first to bring it home.
More features
Vaccination Tracker · Community · Health Records · Memories · Sounds · Cry Analyzer

