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Growth chart App

Two Apps are available based on the 2013 Fenton Growth Charts

1. A full growth chart plotting App, that also provides exact percentiles and z-scores based on actual age 

2. A calculator that provides exact percentiles and z-scores based on completed weeks

Details and download instructions below:

1. A Preterm Growth Chart App that shows babies growth patterns (weight, head circumference, and length) on the Fenton 2013 growth charts is now available. This App only works on Apple iPhones and iPads that have an Operating System of iOS 8 or greater.

"I love this growth chart App, that you can enter the data every few days and see the baby’s growth pattern on the growth chart.    It also provides Z scores for each measurement.  This App is much easier to use than paper copies of the growth charts, and I like that you can e-mail the growth chart too."  Sarah McKenna, Pediatric Dietitian


Free - You can test the App for up to 2 babies, 5 measurements 

Family version (1 or 2 babies) - $4.99 

Professional version (unlimited babies) - $29.99

Available from:

Apple App store: 

Quatrian website:

Features include:

  • Tracking preterm infants with gestational age at birth of 22 weeks to 37 weeks
  • Tracking measurements up to 67 weeks
  • Family version allows tracking of two children (through in-app purchase)
  • Professional version allows tracking an unlimited number of children (through in-app purchase)
  • Printing chart to any iOS enabled printer
  • Emailing chart and data values with password protection
  • iPad and iPhone support 

2. A calculator that provides exact percentiles and z-scores based on completed weeks (free):


Price: Free, no charge

Requires iOS 6.1 or later.

Compatible with iPhone, iPad, and iPod touch, optimized for iPhone 5.

Available from: Apple App store: