The Sinch SDK allows developers to add voice calling and/or instant messaging to their web apps. It handles signaling and audio management and also provides the ability to create user interfaces. This first release supports only instant messaging and app-to-phone calling with app-to-app calling to be added at a later date.
As messaging apps scramble to out-feature the competition, Telegram has launched a gaming platform within its Bot API. Most messaging apps have now included bot capabilities within their apps, but Telegram has upped its game with the ability to build games within the messaging app.
Facebook has announced the release of Graph API v2.11 and Messenger Platform v2.2. Facebook Graph API v2.11 includes changes to the Pages API and App Links Host. The latest version of the Messenger Platform includes the availability of the Messenger Broadcast API (open beta) and Page Insights API.