IS 239 Mark Twain is an iPhone app developed by IS239 Mark Twain School for the Gifted and Talented. It falls under the Education & Reference category and is available for free. The app is designed to cater to students, parents, teachers, staff members, and the wider community associated with the school.

With this mobile application, users can access a wide range of features including news updates, announcements, event schedules, photo albums, videos, and dedicated sections for each teacher and staff member. Stay informed effortlessly through push notifications and conveniently access a plethora of information all in one place.

Furthermore, the app enables users to communicate directly with teachers and staff members through in-app messaging, offering a seamless and convenient way to stay connected anytime and anywhere.