Apple’s App Store is widely considered the king of mobile marketplaces — even Android fanatics will admit that it offers a greater selection of high-quality apps and games. But it’s Google Play that’s currently seeing the most growth, according to the latest data from app analytics firm Distimo, while the App Store enjoys more than four times as much revenue.

Viber, the popular cross-platform mobile communications service, has today announced that it has now surpassed more than 140 million users across six platforms, with 400,000 people joining the service each and every day. To celebrate the milestone, the company has introduced a number of new features to its Android and iOS apps, including the ability to send “fun stickers” and “playful emoticons,” and support for the iPhone 5’s larger display.

The original Angry Birds game for smartphones, the title that started it all back in 2009, celebrates its third birthday this week. And what better way to do that than with lots of new content. In addition to support for Apple’s new iPhone 5 (finally!), you can look forward to 30 brand new levels and more on Android and iOS.

Google has been busy rolling out updates to its mobile apps this week, making big improvements to the Gmail and YouTube app for iOS. But it seems the company hasn’t quite finished yet. It just rolled out some major changes to Google Shopper for Android and iOS — including a new look and new features — which are sure to make Christmas shopping on your smartphone a great deal easier.

Wunderlist 2 is coming soon.

6Wunderkinder has announced a brand new version of Wunderlist that’s coming to Android, iOS, Mac, and PC just in time for Christmas. Wunderlist 2 has been “reengineered, rebuilt and redesigned, from start to finish,” its creators tease. Check out what’s new and get a glimpse of the new app in the preview video below.