Instant messaging

Columns: Instant messenger client | Company | Usage
Snapchat | Snap Inc | 301 million monthly active users ( 2016 ) | Telegram | Telegram Messenger LLP | 200 million monthly active users ( March 2018 ) , 365 million registered users ( 19 August 2019 ) | Tencent QQ | Tencent Holdings Limited | 823 million monthly active users ( July 2019 ) | Viber | Rakuten | 260 million monthly active users ( January 2019 ) , 1.095 billion registered users ( March 2019 ) | WeChat | Tencent Holdings Limited | 1132.7 million monthly active users ( Q2 '2019 ) | WhatsApp | Facebook | 1200 million monthly active users ( January 2017 ) , 1.5 billion registered users ( 31 January 2018 ) , 500 million daily active users ( March 2019 )

Example questions:
Which Japanese company has instant messenger software with more than 100 million usersthat was developed in 2010 by Israel-based Viber Media ? | What year did the company headquartered in Cupertino , California launch their instant messaging service with more than 100 million users ? | When was the instant messaging telecommunications application with more than 100 million users , from the company founded by Bill Gates and Paul Allen , first released ? | Who founded the camera and social media company responsible for the instant messaging app that has 210 million daily active users ?

Answers:
Rakuten | 2011 | August 2003 | Evan Spiegel and Bobby Murphy