XCode 8: how to adapt iphone app for iPAD

Question

Even if my client made me design an iOS app only for iphone devices, now he wants me to run it in iPADS too, as a preview before loading the app in the App Store (ipads 2 or 3). My app has many constraints so that it's showed good on any kind of iphone (> 5S). So, I set the "Targeted Device Family" to "1,2" in the info.plist of the app and I tried to install it in a pair of iPADs. Even if in iphone eberything is good like the following:

the same thing does not happen in the ipad:

I do not understand why everything is so magnified and not full-screen. What can I do just to fix this a little?

This is what I see in info.plist --> Build Settings

Answer 1

Set rather this value in your Target -> General settings:

My app is working properly on the iPad even with Target Device Family set to 1.

Answer 2

Add key "UIRequiresFullScreen" and set Yes to your info.plist file