Officially, FitXR is available in any country where you can purchase a supported device.
The list of supported countries varies slightly between Meta Quest and Pico, but you can find each of them at the respective lists using the links below:
If you're having trouble accessing FitXR in a country that you believe it should be available - drop us an email to support@fitxr.com. If we're unable to help, we'll be able to direct you to the respective platform support team.