1. Simplicity. You either opt-in or opt-out of people you follow. You will not be forced to see your best friend’s friends’ of friends’ picture that your best friend commented on yesterday. You will not be forced to see advertisements of the Steve Madden boots that you browsed reminding you to complete your shopping cart purchase. You will not unintentionally miss content because you filtering out irrelevant content with the F-shaped pattern.
2. The Explore Tab. If you’re finished scrolling through the updates on your newsfeed, the explore tab is available. Stickiness is achieved in 2 ways. First, by relevance. Instagram bases the explore tab photos on people you follow (and what your followers like). This helps you find out what is “in-the-loop” with the people you follow. It also bases the photos on the hashtags you liked. For example, if I liked a few photos with the hashtag #dogs #dogsofinstagram etc., I will get a lot of dog photos on my explore tab. Second, Instagram gets you hooked by implementing the unlimited scroll. Of course, scrolling down the never-ending explore tab (content that is 99% relevant to me) is NOT the best thing to do when I am taking a break from my study session.
3. The Pace. Instagram is relatively slower-paced than Facebook and Twitter. You can follow users without missing anything in between. I find that every time I open the Instagram app, I can go through all my newsfeed updates within 10 minutes. Whereas if I log into Facebook or Twitter, it would take me forever to get back at the updates where I left off. Even if I do somehow get to the point where I left off, not ALL content that I want to see appears on my newsfeed. Facebook and Twitter filters out what they think I want to see (which sometimes they do a good job of, but sometimes they don’t).
4. Usability. Instagram has an extremely user-focussed design. There are absolutely no irrelevant distractions like advertisements, excessive verbiage, unnecessary tabs that you never use, buttons that you never click etc. The design is simple and easy to use. Engagement is easily achieve. Instead of coordinating your fingers to tab the tiny “like” button (which is sometimes an issue for those with fat finger syndrome), you simple double click on the image that fills up your entire screen to like the photo.