Hubspot exit intent technology works great on Desktop.
Doesn't work at all on mobile. In fact you know it doesn't work because when anyone creates an exit intent popup, you automatically check the box "dont show on mobile". And if some brave soul does uncheck that box, (s)he discovers that on mobile, the popup shows after delay, not on exit intent.
Signal 1: Back Button Pressing As a mobile user, one of the ways to leave a website is to press “back” until you get back to the previous website you were visiting (Google, for example).
Signal 2: Scroll Up
On most phones — and iPhones and Android phones are no exception — the URL bar disappears when you scroll down. To type in a new URL to leave the page you’re on, you have to scroll up a little. That’s another signal we can use.
The key here is to find the right amount of scroll up. If it’s too sensitive, it will trigger as soon as the user scrolls up a little. On the other hand, if it’s not sensitive enough, your popup will never appear.