EuroHealthNet designed the app 1.0 - a 'light' version based on the Gradient Evaluation Framework (GEF) - which is a detailed and comprehensive evaluation tool-kit developed from an EC FP7 Research Project, available here.
This app 1.0 only summarizes the key points and it is recommended to use the full GEF for a more thorough evaluation process.
All concepts, principles and underlying evidence can further be consulted in a book The Right Start to a Healthy Life" Levelling-up the Health Gradient Among Children, Young People and Families in the European Union - What works? Edited by Ingrid Stegeman and Caroline Costongs (March 2012) and to be downloaded here
More information on the GEF App is available here