Samsung ChatOn version 3.5 lets you delete messages even after they've been read, as well as adding new location, language and file-sharing features.
This report misstated the availability of the BBM for Android and iOS.
Samsung's own-brand chat service has amassed a whopping 100 million users, just two years after its launch, putting it up with the likes of BBM and Line.
Korean electronics giant says its mobile messaging platform is now available in 237 countries and 63 languages.
Samsung's free messaging service ChatON is here to take on BlackBerry Messenger and Apple iMessage.
BitTorrent's new instant messaging program doesn't store metadata and offers end-to-end encryption.
Facebook ends mobile messaging on its main app worldwide, prompting users to download its standalone chat app.
Several health-and-fitness trackers have gone on sale in China, revealing that messaging-app maker's efforts to become a software platform for wearables and eventually "everything."
If you need to keep your conversations discreet, or just want an extra layer of privacy, Wiper for Android and iOS can help out.
Pricing not available
Using either a PC or a Mac, we show you how to video chat with a group of people for free, on devices you already own.