GfyCat is the official application for the site of the same name. With it, you can browse more than 20 million gifs of all kinds, all perfectly sorted into categories you can access from the drop-down menu on the left.
By default you'll see an endless feed of gifs on the screen of your Android. Tap any one of them to open it in a new window, where you can easily share the gif through any of the other apps installed on your device.
One of the most interesting features of GfyCat is that you can not only see and use the gifs from its database, but also create your own. Just point your device's camera and press the record button. You can create animated gifs anywhere from 2 to 15 seconds long, and also add different filters and effects.
GfyCat is an excellent application for browsing, sending, and creating gifs. With its convenient interface, you can do anything in just a few seconds, whether it's sending a gif via Facebook Messenger or creating your own gif using the camera on your device.