So in one of the latest updates, Instagram has snuck a new feature in pretty quietly. You can now turn on post notifications for individual users that you follow, so whenever they post an image you will be notified via a push notification.

Get Push notifications everytime your favourite Istagrammer posts

It's pretty simple to turn on:

View your favourite Instagrammer(s) profile. In the top right of the screen, click the three dots. From there the option will appear (see image above).