The giants competing communication app like Telegram, Lime, and Kik has its user in million. Viber is hoping to enter in cryptosphare. They considering support for the native coin lunched by parents company, Rakuten coin. 
Viber Rakuten coin
Viber was actually developed in Israel. It is instant messaging app was bought by Japanese giant online Rakuten in 2014 for $ 900 million, and now has over a billion user worldwide. Its parent company announced plans to lunch their native coin ' Rakuten Coin'. Reporting to media now they studying the law in Russia in order to lunch their native coin in 2019.
'Rakuten coin' cryptocurrency is supported by all Rakuten ecosystem. Viber chief executive officer Djamel Agaoua declared reporter on Tuesday according to Russian new agency Tass. This token will be tradable in viber app and its coin will store in viber wallet. Vary soon we will able to trade against ruble, Dollar, euro. With possible bank account according to Russian law.
MESSAGING APP LOVE CRYPTOCURRENCY AND TOKEN.
As per 2017 many messaging app lunched their coin and had join million of investors worldwide. Like Kik had lunched its ico and 300 million active investor has join. Its net worth was 100 million in ICO in 177 country. Telegram also grab the investors. Many small investor had participated in ICO made it to the $1.7 Billion. Its actually vary high invested company in this early year.
Lime is most popular messaging app of Japan which had lunched their ICO. Its net worth is about 200 million dollar.