What are push notifications?

In short, push notifications are alerts that are "pushed" to your devices by apps, even when those apps aren't open. They're designed to catch your attention on smartphones, laptops, and even on smart watches.

Does Google Authenticator have push notification?

Google Authenticator has no push notification capability. Many who switch from Google Authenticator to Authy never look back. So, now you’re armed and ready for the next time someone says both apps do pretty much the same thing. They don’t. And now you know.

Does boxcar have push notifications?

Boxcar was a very popular app that could get push notifications for apps that didn’t have it yet. People were more excited about notifications than ever before. Android was not far behind. Google released its own service in 2010, which brought push notifications to Android developers. However, Google took push notifications even further.

How do I get notifications to pop up on a user's notification center?

There are lots of moving parts behind the scenes for a message to pop up on a user’s notification center. A push notification service specific to each operating system is the first requirement. Then the app publisher needs to enable the app with each service.