Flashfood is an app that is half to prevent food waste and half for those who are bargain hunters. Each day there are foods close to expiry that the store is getting ready to throw away. In most cases the items are discounted around 70%. Usually there are lots of bread products, but also cheese, milk, and meat. You purchase and pay on the app, then pop by customer service to collect your order.
Superstore is the main chain around the province that uses it, but the website has a list of all stores and communities available.