Belgium launched its coronavirus exposure notification app on Wednesday months after working with Apple and Google
The application itself is based on corona warn app used in Germany and the European open standard DP3T (decentralized privacy preserving proximity tracing). Belgium, like many countries, uses the app to help alert users to high-risk exposures that test positive for covid-19.
High risk exposure is considered to be at least 15 minutes within 6 feet or less from an infected person.
If users of the application are infected with covid-19, they can choose to alert anyone who reaches the minimum threshold of high-risk exposure. This alert is anonymous and helps complement traditional contact tracking.
The Belgian government strongly encourages all citizens to download the app as much as possible, as it can only work if a significant proportion of the population uses the contract tracking app.