It's great, that the messenging apps are embracing Bitcoin and cryptocurrencies.
Chat app Line has also planned to start cryptocurrency services [1], which makes sense, as Japan is crypto's safe haven. Telegram is also on the way to initiate the largest ICO with TON [2].
Interesting times ahead.

References:
1. https://techcrunch.com/2018/01/30/line-cryptocurrency-insurance-and-loans/
2. https://beta.techcrunch.com/2018/01/08/telegram-open-network/