COVID Alert App - a privacy-first COVID-19 exposure notification app

Published on July 31, 2020

All Ontarians are encouraged to download the new COVID Alert app for free from the Apple and Google Play app stores.

The more people who have the app, the more effective the province will be at stopping the spread of COVID-19.

COVID Alert supports early detection, testing and self-isolation and will help keep Ontarians safe as the province gradually reopens and social interactions increase.

COVID Alert uses Bluetooth technology to detect an app user’s proximity to other 

Ontarians who test positive for COVID-19 can choose to send a notification to other app users who have been near them, without sharing any personal information, enabling them to take action sooner.  Users who receive a notification that they may have been exposed to someone who has tested positive for COVID-19 will also receive appropriate recommendations based on current public health guidance.

The app does not know where or when someone encounters another user, and does not collect or share any user’s location, name, address, contacts or health information.

The app does not replace contact tracing; it complements contract tracing done by local public health units.

Public health units focus on tracing Ontarians’ known contacts The app focuses on alerting Ontarians’ unknown contacts—the person beside you on the bus, or behind you at the supermarket--without sharing personal information.

Developing user-friendly digital tools like COVID Alert shows how Ontario is building a smarter government that works for you.  For more information and to download the app, visit

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