Default Hide some accounts from certain apps?

Hi,

I have a lot of paid apps, and of course I'd like to use them on my wife's phone as well. However, I'd like to have my play store account on there without also showing up in her gmail, Google+, photos, etc. I have sync turned off, but the account can still be easily accidentally selected.

Perhaps there's an xposed module, or similar? I looked, but couldn't find anything.

Right now, I've deleted my account from her phone, but I have to put it back every few days to pick up app updates, then delete it again.

I've searched, by haven't found any simple solution. Ideas?

Thanks,
Dan