how to hide an app on the computer
I don't know how to hide to hide apps on my pc
iPhone 6s, iOS 9.1
To hide them from the cloud, go to the Purchased section (click on your name / icon towards the top right of iTunes and click Purchased on the popup, or you can access it via the Purchased link under Quick Links on the right-hand side of the iTunes store homepage) : Hide and unhide purchases in iTunes or iBooks on your Mac or PC - Apple Support
When you hover your mouse pointer over an app in Purchased the 'x' right not show on its top left corner (there is a bug in iTunes), but clicking there should still hide the app.