CrainTrainX is part of a research project being conducted by Jennifer Golbeck and Megan Monroe at the University of Maryland, College Park. The purpose of this research project is to understand how people choose and remember passwords. You can learn more and enroll as a participant in the project here:
http://www.cs.umd.edu/~golbeck/exp/passwordmem/
IMPORTANT NOTE: Push notifications must be enabled to fully participate in the project.
While CrainTrainX is designed solely to support this project, it is based on the original CrainTrain app, which can be found here:
https://itunes.apple.com/do/app/craintrain/id886145251?l=en&mt=8