Did you try reading the posts from "lampard" on the TomTom Forum about Using iPhone subscription?????
Try reading post 4 from "lampard"......
gpspower has nothing to do with iPhone subscription to TomTom Go or any other Tomtom products be it iOS or Android.
Those questions can only be answered by TomTom........
And here is a quote from "lampard" post 4 on the link I posted for you.
"I believe you have the GO Navigation app on your iPhone?
It is not possible to buy one subscription and use it on multiple devices/platforms,
even the family sharing with Apple doesn't support the sharing of App Purchases among family members.
Regards, lampard"
Map update info see link:
Plus you can always send an email to TomTom asking about this info.
And every thing is based on subscription you signup for.
And here at the apple store:
I think this should answer your question that you could not find......... at Apple Store
Bookmarks