My phone app has disappeared. How do I get it back

Open Settings ➔ General ➔ Reset ➔ Reset Home Screen Layout.

This will bring back the Phone app however will also re-arrange your home screen. You may have to arrange the app icons back to the way you like them.

Axel F.

Swipe to the App Library after your last home screen and search for it. Tap and hold til it jiggles then drag it out leftwards

I don't think iOS 12 uses that feature.

My bad, I can’t see what phone they have on my iphone Safari. I wish people would include ios and phone model in the text.

No big deal. I can't see well enough on my iPhone and have a 40 inch monitor for my Mac mini.