Does Earn It work when I am in another country?
This depends on your roaming arrangement with your mobile phone provider; please check with them before travelling. If you have roaming activated, then you should be able to access Earn It as normal and your daily health goals will be pulled into the app.
If you do not have roaming activated, please continue to hit your daily health goals and sync them with the Apple Health Kit. They will resync once you are back in your home country.