New Trier Block is an iPhone app developed by New Trier Township High School District 203. It falls under the category of Education & Reference and is available for free.

The main purpose of this app is to assist students and faculty in identifying whether it is a Blue or Green Day in New Trier High School's Block Schedule, as well as providing information about the current period during the school day. The app also includes Personalized Learning Day information for the second semester schedule adjustment.

With New Trier Block, users can easily stay updated with the school's schedule, ensuring that they are aware of the correct day and period. This app is a convenient tool for students and faculty members alike, helping them navigate through the Block Schedule system effectively.