Canada, Australia, and Japan are the newest countries to access Apple's AppleCare+ monthly plans. The company first brought this option to the US in 2018. While it doesn't show up as available in the three countries yet, we assume that's going to change soon. Apple confirmed the expansion by adding them to an official support article.
AppleCare+ or AppleCare+ with Theft and Loss coverage used to be available for purchase in 24-month increments for the iPhone, iPad, or Apple Watch (or 36 months for the Apple Watch Edition and Hermes models). Once this option goes live, you can choose to pay for an AppleCare+ plan upfront or switch to the monthly plan and receive coverage beyond the two years. Pricing and device support varies from country to country. And it currently doesn't support the Mac, HomePod, and other Apple devices.
Source: Apple Insider + 9to5Mac