<P> Facebook Messenger ( sometimes abbreviated as Messenger ) is an instant messaging service and software application . Originally developed as Facebook Chat in 2008 , the company revamped its messaging service in 2010 , and subsequently released standalone iOS and Android apps in August 2011 . Over the years , Facebook has released new apps on a variety of different operating systems , launched a dedicated website interface , and separated the messaging functionality from the main Facebook app , requiring users to use the web interface or download one of the standalone apps . </P>
<P> Facebook Messenger ( sometimes abbreviated as Messenger ) is an instant messaging service and software application . Originally developed as Facebook Chat in 2008 , the company revamped its messaging service in 2010 , and subsequently released standalone iOS and Android apps in August 2011 . Over the years , Facebook has released new apps on a variety of different operating systems , launched a dedicated website interface , and separated the messaging functionality from the main Facebook app , requiring users to use the web interface or download one of the standalone apps . </P>
when did the facebook messenger app come out
when did the facebook messenger app come out
August 2011
August 2011