WATERTOWN, Mass. —

Watertown High School will be the first public school in the country to roll out a new app designed to limit students' screen time in the classroom.

The app, called the "Doorman," uses VPN technology to temporarily block a smartphone by redirecting the phone's web traffic through a restricted, encrypted server, ultimately preventing students from texting or engaging with other distracting content in class. Latest Forecast

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"This strikes a balance where the kid can keep their phone, but they're able to focus for those 56 minutes of our period because their phone is bricked, disabled, and it's blocking all high-dopamine apps," Watertown High School principal Joel Giacobozzi said. "So a student simply taps and it tell

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