iPhone 6s: apps greyed out after restore from another phone's backup So I had an iPhone 5 for a few years.

I bought a 6s recently and after restoring a backup from my iPhone 5.

After the restore, most of my apps are greyed out.

When I tap an icon, the name of the app switches to "Waiting" but nothing seems to happens.

On top of that, it seems like my passwords have been lost. For example, I've got 6 email addresses on the phone and when I open the "Mail" app it asks me to enter the credentials again, I'm not sure if it's related.

NB: I do not use iCloud at all.

I looked it up on the internet and already tried the following:


Restore again
Resync everything
Log out and log back in my iTunes / App Store account
Reboot the device


NB: I know it's possible to get my apps back by using the "Purchased Items" from the App Store but I do not want to delete my apps as I do not want to loose the data from them.
Waiting normally means the phone is doing something with the app store. The iPhone 6s is larger then the iPhone 5, so therefor the apps that work on a 5 probably won't work on a 6, or at least they will look a bit weird. Leave the phone connected to the internet and let it do its thing, if after a while the apps are still "Waiting" then the only other reason for this is, the apps just aren't compatible.