That's an interesting question, because no two contact-tracing apps are created equal.
There are contact-tracing apps that focus on collecting only data about proximity of devices. There are contact-tracing apps that also collect GPS data, which could be useful to public health authorities in determining where there are outbreaks. As well, there are contact-tracing apps that are going to ask users to input symptoms and so on, and may use AI to provide analytics to supplement the lack of testing that we have. This is a very broad range of data collection. They are very different apps with different goals, and I think talking about contact-tracing apps in the abstract is really problematic and very challenging for Canadians.
I've seen surveys asking Canadians if they are in favour of or opposed to contact-tracing apps, but nobody knows what we're talking about. This is part of the issue of transparency. We have to be very clear about what our goals are, what kind of information we're planning to collect to serve what purposes, before people can really meaningfully engage with whether this is a good thing and something that people want to participate in.