Hello @nissansupragtr
No, you don’t need a Premium subscription to get the ECG App (you do for the Daily Readiness Score however), but it’s not available in every country yet.
Before buying it, it would be a good idea to check this list to make sure it’s available in your country. If you click on this link and then scroll down to the bottom of the page, you can see the current list of countries.
If your country isn’t on the list, the App might appear later when the authorities in your country approve it.
I hope that helps a bit.