Again problems with apk installations via itunes..?
Apple had removed that app section in the latest version of iTunes 12.7 [released on September 19th 2017]. So there after this simple drag and drop solution as in the post Where in the world are the apps in iTunes library? helped to rectify the trouble.
But installing from the iTunes is not working for some times even with this drag and drop solution
I got a solution for this from Apple support site itself. Just go to this link and download the iTunes version Apple released
https://support.apple.com/en-us/HT208079
This itunes version can be used to download your app. And with this the previous App section is back in our ITunes folder.

How to install ipa on the device?

Are apps missing from the left section of your iTunes window?

Wondering where in the world are the apps in iTunes library?

A bit Google search helped me to understand that Apple had removed that app section in the latest version of iTunes 12.7 [released on September 19th 2017]

As a tester/developer it would be real trouble for you especially when you want to install a new apk in your ios device.

Never you are left alone. Always there is a workaround if something fails

I was so happy when I found this simple drag and drop solution to this trouble.

So here go the simple steps for you

  1. Save the ipa in your desktop
  2. Connect your ios device and your computer/laptop using the USB cable
  3. Open iTunes [might appear automatically]
  4. Drag and drop ipa on theDevices section on your device name only
  5. You are done.