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The Korean messaging app promises to reduce how long messages are stored and to add end-to-end encryption in an effort to appease worried users.
The Japanese messaging app Line may be blocked in China, but it's still raking in cash from merchandise based on its cartoon characters at a huge mall in Beijing.
Apple's next iteration of its mobile operating system is all about upgrading what's under the hood.
Messaging apps were the hottest, jumping by more than 200 percent in usage, according to analytics firm Flurry.
The company has not officially decided to adopt a standalone direct-messaging app, but the feature will at the very least become more prominent in its current service.
Verizon becomes the latest carrier to offer an early upgrade plan, Netflix makes Emmy history, and the HTC One shrinks to a Mini version.
According to new data, 19 billion chat messages were sent each day last year, compared to 17.6 billion SMS messages.
The messaging app, which now has 50 million users in total, is rolling out new versions for both Android and iOS.
Microsoft's call app increased its traffic in 2012 by twice the amount of all international phone carriers combined -- it's calls are now equal to one third of all global phone traffic.
Whatever your reason to seek out a Wi-Fi calling app, this handful rises to the top.