The Mac app store is an application market place that Apple released with Mac OS X 10.6.6 update.  Usually we install Mac apps directly after downloading it from the internet or from media discs. Mac app store is like the iTunes store for the iPhone, iPad and iPod Touch. Here we use Apple ID to purchase or download applications directly from the cloud, and the upgrades can be installed like that in iOS devices.

It is pretty easy to install apps from the store, but there is no direct option to uninstall or remove Mac store and apps installed. However, you can do that through a method given below.

Remove Mac store from OS desktop:

Just press on the icon of the downloaded app. A close button will appear at the top. Click on that to proceed with uninstalling.

Uninstall Mac Store apps:

You can use an application like ccleaner for mac to remove Mac store apps completely and without any traces. Your purchased apps will be always safe in your Apple ID, and you can restore everything by re-installing Mac OS 10.6.6.