There are two ways to add any site to Apps section. Try any of these:
#. Either drag website thumbnail from the “Most Visited” tab to “Apps” tab. A new app will be automatically added with its favicon as the thumbnail. You can have this newly created app in already present app tabs or you can create a new tab by dragging the icon further to the right.
#. Or open a website and hold its icon from the omnibox to the “Apps” tab. This way you can have new sites as apps, which might not be in your frequently visited section as apps. Another nifty trick, which was shared on reddit is that you can double click on a tab name to rename it. Some people argue that why we have separate Apps section when they are just links to websites. What is the difference between apps and website links? The answer is that they are not the same. Apps can have different privileges than the regular websites and they can have unlimited local storages and background pages. However, there are only few apps like TweetDeck that take this benefit of differentiation. Nevertheless, for quick access to any of your favourite website, just drag it to the app section. No need to search and then install it from the official extension gallery. Simple!