Android dominates the APAC market by mobile internet usage, but iOS had clawed back significant ground by the second quarter, according to Millennial Media.
The Android platform accounted for 60% of all Asia-Pacific platform impressions on Millennial Media's mobile ad platform in Q2, the APAC version of the company's latest Mobile Mix report shows.
This compares to 34% for iOS, and just 3% for third-ranked BlackBerry.
But iOS's share improved from 23% in the same quarter a year earlier. While most of the gain came at the expense of BlackBerry and Windows Phone, Android's share declined from 64% over the same period.
Millennial's list of the top impressions by device manufacturer meanwhile shows a close-fought race between Samsung and Apple. Samsung is on top with a 32.7% share, but Apple is not far behind at 29.9%. The number of impressions from Apple devices also improved 22% quarter-on-quarter.
Nokia came in third with 5.4%, followed by Sony Ericsson and HTC. Huawei was in ninth place, and ZTE 15th,, but these rankings may not accurately reflect these vendors' smartphone performance in their domestic Chinese market.
Smartphones accounted for 69% of APAC impressions in Q2, down from 81% a year earlier. This statistic shows the increasing importance of non-phone connected devices such as tablets - as well as feature phones with smartphone-like mobile browsing capabilities - in the Asia-Pacific market.