Second device same app purchase
For those who have two i devices and want same app on both, I have a question.
I have read to sync/backup on one then restore on other and that makes sense. However, can we just log in on the second device (iTunes) and redownload app?
Like I have an iPad if I take an app off I can put it back on by going to AppStore and trying to buy again, it allows redownload. Does this happen on second device or is redownload tied to serial #?
The reason I ask is we're getting a second iPad but the first will be on a trip when the second is delivered. We plan to backup before the trip but for ease I had the idea of just logging in. We'd be having the same iTunes login regardless so would it work?