I'm not sure if it's transitioned to a Square-based app yet. If I recall correctly, details around the partnership were slim. In the short term, it meant that

I'm not sure if it's transitioned to a Square-based app yet. If I recall correctly, details around the partnership were slim. In the short term, it meant that Square would process all of Square's payments on the backend. Square app-integration would occur in the long term. My line of reasoning was basically that Square's launch in Canada closely coincides with the Starbucks partnership, which means they will be processing all of their Canadian transactions, which has to include Interac. If/when the Starbucks app transitions to the Square wallet type implementation, it would act as a catalyst for Square adoption in Canada. And you raise a good point, the app will change greatly once it's implemented.