Apple and Google have teamed up to develop push notifications that let Android and iOS users know if they might have been exposed to COVID-19.

The companies announced the news on Tuesday and the effort is called Exposure Notifications Express. It's an opt-in-based system that lets your local public health agency alert you to potential coronavirus exposure via a notice on your smartphone. It will also allow the agency to guide residents on actions to take if they've been exposed, according to Apple and Google.