Where does your child stand
among peers? How tall will they be?
Log your child's height and weight, and see height, weight and BMI percentiles, the growth curve, and even a predicted adult height at a glance — all against official growth charts.
Record your child's growth, and watch how they change, little by little.
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What Grovii answers
Growth changes in charts
See where height, weight and BMI rank among 100 children of the same age in months.
Predicted & analyzed height
An estimated adult height from parents' heights and the growth trend, with a margin of error.
A year-by-year record
Every past measurement and how much your child has grown, at a glance.
Growth summary at a glance
Height, weight, BMI and percentile right on the home screen.
One app for all your children
Each child gets its own profile, records and charts.
Stored on your device
No account. Your child's data is never sent to our servers.
Made by a parent
When you're raising a child, sometimes even a small, ordinary number can weigh on your mind.
"Is my child growing well?" "How does that compare with other kids their age?" On the days after a check-up, I would look up growth charts, or go back through our old records.
But when I actually looked, it was hard and complicated — not easy to take in the information I needed at a glance.
So I decided to just build the thing I wanted to use myself. Something that keeps my child's records one by one, based on the official growth charts, and lets me see how much they've grown so far, all in one view.
A single day's height might not seem like much. But looking back, each of those numbers is time my child has spent growing.
I hope Grovii can be a small logbook that helps you look at your child's growth with a little more peace of mind.
And I hope it helps every parent raising a child with the same heart.
Trusted growth standards
Choose the official growth chart you trust — CDC (US), WHO, KDCA (Korea), MHLW (Japan), NHC (China), UK90 (UK). Age is counted in completed months, exactly like the charts themselves.
FAQ
Is it really free?
Yes. Grovii is free to use. It's ad-supported, and your child's growth information is never used for ads.
Is the predicted height accurate?
The predicted adult height is a reference estimate calculated from your child's current growth trend and the parents' heights. If you need an accurate assessment of your child's growth or health, please consult a pediatrician.
Which growth charts do you use?
The default is the CDC (US) chart; you can also choose WHO, KDCA and other official growth charts.
Is my child's data safe?
No sign-up is required, and growth records are stored only on your device. See the Privacy Policy for details.