http://www.bbc.co.uk/news/business-22334338
Instant messaging on chat apps, such as WhatsApp, has overtaken the traditional SMS text message for the first time, according to research firm Informa.
Informa said almost 19 billion messages were sent per day on chat apps in 2012, compared with 17.6 billion SMS texts.
The shift is likely to have a big impact on mobile operators, for whom texts have been a key revenue source.
Pamela Clark-Dickson of Informa said some operators were already "seeing a decline in their messaging revenues".
According to separate estimates by research firm Ovum, more than $23bn (£15bn) of SMS revenue was lost in 2012 due to popularity of chat apps.
'Lot of life'
Informa said that it expected the messaging on chat apps to grow even further in the coming years.
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There are a few things that, I think, will keep the SMS alive for a few years yet”
Pamela Clark-Dickson Informa
It has projected that nearly 50 billion messages will be sent per day using these apps by 2014, compared with just over 21 billion traditional SMSs.
However, it said that despite the growing gap between the two, SMS will continue to remain a key player in the sector.
"There is a lot of life still in SMS," said Ms Clark-Dickson of Informa.
有料か無料（アプリ代が必要でも）かというのは大きな違いだろう。
また、データ通信量とＳＭＳ一通あたりの値段がどうか、という点も。
この辺りのバランスからは、アプリ、WhatsAppを99セントで購入するのが最安となるケースが多いのではないか。
日本のように定額データが主流の国がそうした方向性を後押ししている可能性は高い。
にほんブログ村
スマートホン スマートフォン アプリ
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