Free baby growth percentile calculator using WHO and CDC charts for children 0–5 years
Track, analyze, and manage your migraines with free daily logging and pattern recognition
Stage
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Not given
Free plan includes daily tracking, pattern recognition, and preventative insights. Premium: $5.99/month for clinical PDF reports and correlation analysis.
Key features
WHO Child Growth Standards charts for ages 0–60 months
CDC 2000 growth charts available from age 24 months
Weight, length/height, head circumference, and weight-for-length measurements
Separate growth curves for boys and girls
Corrected age calculation for premature babies born before 37 weeks
Private browser-only growth log with no server upload
Trend alert for faltering growth based on UK NICE guidance
Gain-per-day check between measurements
Works offline after initial page load
Daily check-ins to log medications, symptoms, and potential triggers
Pattern recognition and data visualization
Preventative insights based on personal history
Medication usage tracking and overuse alerts
Clinical PDF reports for healthcare providers
Correlation analysis of triggers and symptoms
Daily check-in notifications and reminders
Customizable medication database
What makes it different
No ads, no account, no data collection—measurements never leave your browser
Official WHO LMS parameters and CDC data with published formulas shown explicitly
Handles measurement precision automatically with date-of-birth mode for young babies
Applies WHO's 0.7 cm adjustment for lying vs standing measurement method at 24 months
Cross-checked data with automated test suite validating WHO medians and clinical thresholds
Free to use with no paywall for basic daily tracking
Built by a migraine sufferer for migraine sufferers
BabyPercentile
Nimbus Migraine Tracker