Have you guys tried web push notifications?

It’s not a new thing (about a year) and it’s starting to go mainstream.

Basically it’s a small notification popup(with a message and click link set by you) that appears on the screen, while you have the browser open(and sometimes even when it’s closed if the browser runs in tray). Works on Firefox, Chrome, Safari, Opera and very soon Edge.

Facebook, Slack, ESPN and others use this to notify users and seems that CTR is a few times higher than ema ...