|
| genre = Instant messaging | license = Freeware | alexa = | website = }} Facebook Messenger is an instant messaging service and software application which provides text and voice communication. Integrated with Facebook's web-based Chat feature and built on the open MQTT protocol, Messenger lets Facebook users chat with friends both on mobile and on the main website. Facebook reported in March 2015 that Facebook Messenger has reached 600 million users.〔(Facebook new Messenger service reaches 500 million users )〕 David A. Marcus heads Facebook Messenger and had joined Facebook on invitation of Mark Zuckerberg, CEO of Facebook.〔(Why Facebook Has Entrusted Its Future to the CEO of PayPal )〕 ==Messenger for Mobile== Messenger for Mobile was released on August 9, 2011 for iOS and Android, with an October 11 update making the app available for BlackBerry OS.〔〕 In December 2012, the Facebook Messenger app for Android in some regions (such as Australia, South Asia, Indonesia, South Africa, and Venezuela) added the ability to use Messenger without a Facebook account by simply using a name and phone number. These changes are intended to allow Facebook Messenger to compete against similar mobile messaging platforms such as WhatsApp as an alternative to text messaging. Later updates added the ability to use Facebook Messenger as a replacement text messaging client on Android, and added "Chat Heads", an overlay chat system originating from Facebook Home.〔(【引用サイトリンク】url=http://www.theverge.com/2013/4/12/4216838/facebook-updates-messenger-adds-chat-heads )〕 On March 5, 2014, Facebook Messenger app was released for Windows Phone 8. This app contains many features similar to iOS and Android app but lacking chat heads and voice messaging features.〔(【引用サイトリンク】url=http://www.engadget.com/2014/03/04/facebook-messenger-arrives-for-windows-phone/ )〕 In April 2014, Facebook announced that the messaging feature will be removed from the main Facebook app and users will be forced to download Messenger. On July 3, 2014, a native Facebook Messenger app was released for iPad. It was specially designed for iPad rather than just running as an enlarged iPhone app. Messenger for iPad features a multi-window interface showing a list of threads and the current conversation at the same time.〔(【引用サイトリンク】url=http://techcrunch.com/2014/07/03/facebook-messenger-for-ipad/ )〕 There is some controversy surrounding the permissions required to govern its functionality on Android. Some of the permissions include such things as being able to send SMS messages, which may cost money. On March 17, 2015, Facebook added a functionality in which you can send money to your friends. It is currently only available in United States.〔http://newsroom.fb.com/news/2015/03/send-money-to-friends-in-messenger〕 On April 27, 2015, Facebook introduced video calling in Facebook Messenger app. The functionality were first launched in Belgium, Canada, Croatia, Denmark, France, Greece, Ireland, Laos, Lithuania, Mexico, Nigeria, Norway, Oman, Poland, Portugal, the United Kingdom, the United States, and Uruguay.〔http://newsroom.fb.com/news/2015/04/introducing-video-calling-in-messenger〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Facebook Messenger」の詳細全文を読む スポンサード リンク
|