Better COVID-19 tracking is coming to Ontario in July. Premier Doug Ford and health staff said at his daily media briefing on June 18 that Canada's contact-tracing app will be ready to be used in the province on July 2. However, Ford stressed that the measure will only work well if everyone uses it.\nPrime Minister Justin Trudeau announced the app on Thursday, June 18 at his national press conference.\nOntario staff offered more details later on Thursday in their own briefing.\nThe Canadian Press reports via Global News that the smartphone app will launch in Ontario only on July 2.\nPer a provincial government release, it will be called COVID Alert.\nAnd Ford's main message about the app was that, while it will remain entirely voluntary, as many people as possible need to use it for it to work well.\n"It's really really critical that people download the app," he said.\n"If we don’t have the cooperation of the people of Ontario, we put ourselves more at risk... We need people to download this app. It’s going to protect us, it’s going to protect our families."\nFord went on to stress that personal privacy for app users was "our number one priority."\nThe Premier added: "It's the only way, if people download this app. It's like a protective shield around us, to a certain degree. Not 100%, but it's more of a protective shield."\nThe Ontario release details more about how the app will work.\nUsers will be notified anonymously if they have been exposed to someone who has tested positive for COVID-19 in the last 14 days.\nIt will also provide quick access to Ontario's public health resources, and recommend any necessary actions, such as symptom monitoring, self-isolation, or getting tested.\nIt also notes that the fact the app is national means that even Ontarians in other provinces will be notified.\nThe announcement about the app comes just 24 hours after Peel Region's Medical Officer of Health, Dr. Lawrence Loh, urged residents to keep a journal of who they see and touch and where they go to help with contact tracing.