Updated

Google's Android software continues to steamroll the competition in smartphones, posing bigger problems for companies like Apple and BlackBerry.

New data Wednesday from research firm IDC found that Apple's share of the global market slid to 13.2 percent in the second quarter from 16.6 percent in the year-earlier period. Handsets running Android, meanwhile, jumped to 79.3 percent from 69.1 percent.

The signs are particularly ominous for one-time market leader BlackBerry, despite some high-profile product announcements recently. Devices running its software accounted for just 2.9 percent of global smartphone shipments in the three months ended in June, compared with 4.9 percent for the same period in 2012.

Android is given away free to handset makers by Google, whose strategy is to make money on advertising associated with mobile devices. It has long powered smartphones offered by industry giant Samsung, but has lately also benefited by Chinese companies such as Lenovo, Huawei and ZTE. that are grabbing a bigger chunk of the smartphone market.

"You are seeing tremendous growth in the developing world," said Steve Mollenkopf, president and operating chief of mobile chip giant Qualcomm Inc. Companies selling there are "picking up Android and driving that."

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For more on Android's growth -- and Apple's flagging marketshare -- see The Wall Street Journal.