You'll find that you'll likely use a somewhat different set of apps on the N7 as compared to your phone, though many will be equally useful on both. Some apps just aren't as useful on a tablet, and vice versa. Here are some examples that come to mind.
There's not a big need for fancy photo taking and customization apps on the N7, since it doesn't have a worthy camera. However, you'll probably want to install the basic Camera Nexus 7 app that allows you to activate the front facing camera.
https://forums.androidcentral.com/e...ps/details?id=com.netco.camera&token=yq4QMwZO
A tablet is better suited to reading and editing documents, so you might consider installing an office productivity suite like Kingsoft Office or OfficeSuite Pro, if you have such a need. Although it's no picnic creating and editing documents on a tablet, I couldn't imagine doing it on a phone.
The new rage is activity tracking apps, to show how far you've run, where you've been, calories burned, etc. This is great on a phone, but kind of useless on the N7.
Watching a movie on a phone is probably not the best viewing experience possible, but on the N7 it's not too bad. So it's probably worth installing a nice media player like BSPlayer or MX Player, instead of using the stock player.
You'll probably also find that most games are more enjoyable on the bigger screen of the N7, so you might consider installing a few more than you have on your phone.
If you don't have a 3G N7, and you plan on using your tablet on the road, you might want to install something like FoxFi to allow tethering to your phone.
Well, you get the idea. In the end, you'll have lots of the same apps on both phone and tablet, but others that are exclusive to one or the other.