On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Minor improvement tweaks.

On the “CDC” screen, have added “gradual Z-scores” for height, weight and BMI for children 2–5 years, which smooth the transition from WHO values back to CDC [Pediatrics 2025;156(3):e2025070697)]; this can be switched on and off on the “Settings” screen. Minor improvement tweaks.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed minor calculation bugs for several screens.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed minor calculation bugs for several screens.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed a minor calculation bug for this.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts and fixed a minor calculation big for this.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts.

Have added the 2025 (third-generation) Fenton Preterm Growth Charts.

Updated support website.

Have improved readability and uniform appearance of screens. Minor bug fixes. Now remembers choice of exact or direct gestational age input on the premature infant screens from previous session.

Updated copyright.

Updated terms.

Slight rewording of some BMI-derived parameters.

Increased accuracy in the newborn period.

Improvements in screen navigation.

No longer requires an active Internet connection for calculations. Have improved the accuracy of calculations on the “Noonan Syndrome” and “INTERGROWTH-21st Newborn Size” screens. Have improved navigation between screens sharing the same data. Minor improvements in appearance.

No longer requires an active Internet connection for calculations. Have improved the accuracy of calculations on the “Noonan Syndrome” and “INTERGROWTH-21st Newborn Size” screens. Have improved navigation between screens sharing the same data.

Minor formatting, wording changes.

Minor wording, appearance changes.

Updated to target iOS 16.

Have added the ability to transfer data from “WHO” or “CDC” screens to other screens (“Head Circumference”, “Waist Circumference”, “Blood Pressure 2017” and “Obesity Measures”. Have smoothed data for Turner syndrome and Russell–Silver syndrome to improve calculation accuracy. Have added the newly defined “CDC modified BMI-Z” metric to the “Obesity Measures” screen. Have added the “BMI % of the median” metric for eating disorders to the “WHO” and “CDC” screens. Fixed some screen-navigation bugs.

Have added the ability to transfer data from “WHO” or “CDC” screens to other screens (“Head Circumference”, “Waist Circumference”, “Blood Pressure 2017” and “Obesity Measures”. Have smoothed data for Turner syndrome and Russell–Silver syndrome to improve calculation accuracy. Have added the newly defined “CDC modified BMI-Z” metric to the “Obesity Measures” screen. Have added the “BMI % of the median” metric for eating disorders to the “WHO” and “CDC” screens. Fixed some screen-navigation bugs.

Have added the ability to transfer data from “WHO” or “CDC” screens to other screens (“Head Circumference”, “Waist Circumference”, “Blood Pressure 2017” and “Obesity Measures”. Have smoothed data for Turner syndrome and Russell–Silver syndrome to improve calculation accuracy. Have added the newly defined “CDC modified BMI-Z” metric to the “Obesity Measures” screen. Have added the “BMI % of the median” metric for eating disorders to the “WHO” and “CDC” screens. Fixed some screen-navigation bugs.

Have added the ability to transfer data from “WHO” or “CDC” screens to other screens (“Head Circumference”, “Waist Circumference”, “Blood Pressure 2017” and “Obesity Measures”. Have smoothed data for Turner syndrome and Russell–Silver syndrome to improve calculation accuracy. Have added the newly defined “CDC modified BMI-Z” metric to the “Obesity Measures” screen. Have added the “BMI % of the median” metric for eating disorders to the “WHO” and “CDC” screens. Fixed some screen-navigation bugs.

Have added the ability to transfer data from “WHO” or “CDC” screens to other screens (“Head Circumference”, “Waist Circumference”, “Blood Pressure 2017” and “Obesity Measures”. Have smoothed data for Turner syndrome and Russell–Silver syndrome to improve calculation accuracy. Have added the newly defined “CDC modified BMI-Z” metric to the “Obesity Measures” screen. Have added the “BMI % of the median” metric for eating disorders to the “WHO” and “CDC” screens. Fixed some screen-navigation bugs.