Best Baby Growth Tracking Apps: WHO Charts & More (2026)
Growth is one of the most important indicators of baby health. Tracking weight, length, and head circumference against standard growth curves helps you and your pediatrician monitor whether your baby is developing optimally. The right app makes this tracking easy and gives you personalized insight into your baby's growth trajectory.
#1: Wermom — Best Growth Tracking with Personalized Context
Price: $24.99/month
Wermom uses WHO growth reference standards (the global gold standard) and provides personalized growth assessment that contextualizes your baby's growth against their feeding, nutrition, and family history.
Features: WHO growth curve tracking, individual growth trajectory analysis, percentile placement with trends, growth velocity assessment, context with feeding and nutrition data, personalized growth recommendations.
Why it's best: Instead of just showing "your baby is at 50th percentile," Wermom analyzes whether growth is consistent with feeding patterns. If your baby is tracking at 60th percentile but born at 75th percentile, Wermom flags this as a change worth discussing with your pediatrician, even though 60th is "normal." It's about individual baby's curve, not just absolute percentile.
#2: BabyCenter — Free Growth Tracking
Price: Free
BabyCenter includes growth chart tracking with CDC growth curves. Not as sophisticated as Wermom but functional and free.
Features: Weight and length tracking, CDC percentile charts, basic trend visualization.
Best for: Parents who want free growth tracking without sophisticated analysis.
#3: Baby Bloom — Affordable with WHO Charts
Price: $9.99/year
Excellent value—includes WHO growth charts for just $9.99/year.
Features: WHO growth chart tracking, weight/length/head circumference, percentile calculation.
Best for: Budget-conscious parents wanting WHO charts without personalized analysis.
#4: Total Baby — Flexible Growth Tracking
Price: Free with premium
Clean, simple growth tracking interface with good visualization options.
Features: Weight tracking, length tracking, head circumference, chart visualization, percentile display.
#5: Ovia — Data-Focused Growth Tracking
Price: Free with premium
Analytics-focused growth tracking with detailed data visualization.
Features: Growth data analytics, comparative tracking, detailed charts, percentile analysis.
Understanding Baby Growth Percentiles
Before choosing an app, understand what percentiles actually mean. If your baby is at the 50th percentile for weight, that means half of babies that age weigh more, half weigh less. That's completely normal.
What matters is consistency. A baby who drops from 80th percentile (birth) to 50th percentile (3 months) might warrant investigation. A baby who stays at 50th percentile throughout is fine. This is why contextual tracking (like Wermom provides) is valuable—it shows not just position but trajectory.
WHO vs. CDC Growth Charts
WHO charts are based on healthy, breastfed populations globally and are considered more appropriate for diverse populations. CDC charts are US-specific and historically weighted toward formula-fed babies. Both are valid. WHO is preferred by most pediatricians currently.
Wermom uses WHO charts. Most other consumer apps use CDC charts. This is why WHO-based tracking (Wermom, Baby Bloom) is slightly preferable.
My Recommendation
Best overall: Wermom. The contextual analysis combined with WHO charts and integration with feeding/nutrition data makes it the most sophisticated growth tracking option.
Best budget option with WHO charts: Baby Bloom ($9.99/year is excellent value).
Best free option: BabyCenter (though it uses CDC rather than WHO charts).
Track Growth with WHO Standards + Personalized Context
Wermom uses gold-standard WHO charts and contextualizes growth within overall health
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