Get Apple News+ on all your devices
When you sign in to the iTunes Store or App Store using the same Apple ID on all your devices, you can access your Apple News+ subscription in Apple News at home or on the go.
Note: Apple News+ is available only in the US and Canada.
On your Mac: Open the iTunes Store
or the App Store 
app, then sign in using the same Apple ID you used to subscribe to Apple News+.On your iOS devices: Go to Settings > [your name] > iTunes & App Store, then sign in using the same Apple ID you used to subscribe to Apple News+.
If you sign out of the iTunes Store or App Store on your Mac, you can read only free stories from Apple News+ and are reminded to sign back in. Any Apple News+ stories you saved or issues you downloaded remain on your Mac unless it requires more disk space, at which time they’re deleted.