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.
The company cannot overlay its own software on Android Wear devices, such as its upcoming Gear Live smartwatch, but will preload certain features and services, executives tell CNET.
The latest Facebook Messenger update lets you "Like" things even more emphatically, as well as recording 15-second video messages right there in the app.
Facebook wants European competition watchdogs to investigate its $19 billion acquisition of WhatsApp in a bid to head off future antitrust problems.
A wave of the hand could mean danger for owners of the Nest Protect smoke detector. Also, Vine joins the messaging app trend with private videos.
WhatsApp has hit a record high for messages sent and received in 24 hours, beating even New Year's Eve.
For Samsung's quick second generation of its Gear smartwatch brought new apps, like iHeartRadio.