WASHINGTON (AP) — The District of Columbia Public Charter School Board is launching a new mobile app to provide information on each school.

The app was introduced Saturday at the fourth annual Charter School Expo. It provides information on a school's performance, application deadlines, program offerings and transportation options.

The free MyDCcharters mobile app was launched for Android, Blackberry, Java and Windows platforms. It's coming soon for the iPhone.

The public charter school board oversees 57 schools, serving more than 35,000 students.

Mayor Vincent Gray helped launch the new mobile app with the wireless industry association CTIA. The group says mobile devices are an important way to access information on the Internet for low income and minority populations.

Another charter schools app was launched for parents in New Orleans last year.