How to disable Google Now On Tap. While I confess I haven't used Google Now On Tap a lot, I don't understand the need to disable it. It provides Google Now cards in a contextual way from any app on Android. Just long press the home button, and, like magic, Google will give you information that is pertinent to your current use. Rather than disable it, just install the Google Now launcher, and swipe right to reveal the Google Now cards anytime. Easy and useful.