Seedling: Baby Growth Tracker
Private WHO+CDC growth charts
About
Track your baby's growth with WHO and CDC charts. This app offers detailed percentile tracking, growth velocity, and trajectory estimation. Export data for your pediatrician and manage multiple child profiles privately.
What's New in Seedling
1.9
September 8, 2026
• New: Compare Kids. Put two or more of your children on one chart and watch how they grow relative to each other, by weight or height, as actual values or percentiles. • Overlay WHO or CDC reference curves, narrow the view to a specific age window, and flip between chart and table. • The comparison keeps its own WHO/CDC choice, separate from each child's chart settings.
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FAQ
What is Seedling?
Seedling is a baby growth tracker that uses WHO and CDC growth charts to monitor a child's height, weight, and head circumference. It provides detailed percentile tracking, growth velocity, and trajectory estimations, with data export options for pediatricians.
How accurate is Seedling's growth tracking?
Seedling uses the LMS method sourced directly from WHO and CDC data for accurate percentile calculations. It allows for two-decimal precision in charts, tables, and exports for clinical detail.
Does Seedling have ads?
No, Seedling is completely ad-free. It was built with a focus on privacy and does not contain any advertisements.
What devices does Seedling support?
Seedling is available for iPhone and iPad devices.
How often is Seedling updated?
The latest version of Seedling is 1.5, and it was last updated on June 3, 2026. Updates typically focus on refining features and ensuring compatibility.
Can I use Seedling offline?
Yes, Seedling works fully offline. All percentile calculations are performed on your device, ensuring your data remains private and accessible without an internet connection.
What is the price of Seedling?
Seedling is a one-time purchase of $2.99. There are no subscriptions or hidden fees, and all features are available upon purchase.
How does Seedling handle preemie babies?
Seedling supports preemie babies by allowing you to enter a gestational age under 37 weeks. The app will automatically display the corrected age for the first two years, ensuring accurate growth tracking.