Most People Use Facebook and Groups to be in contact with Friends, Family, Closed ones and Now a days most use to share what they know and to get what they don't know..
So A few Hours ago Facebook Introduced an App "Facebook Groups" which makes easier for any one to manage and be in time, Active in their groups i.e., on real time.. Its for Both Android as well as iOS Smart Phones..
Once you Install it you will see all the Groups you joined at one place.. The top most groups are the froups you recently used and all others will be through.. Also the Groups notification will be marked as bubbles in blue. You can add members easily and can also view who are active or online at the present time.
You can easily Create a New Groups and Discover the Existing Groups.