Lumia 530 green

The latest data from AdDuplex shows that Windows Phone 8.1 is continuing its momentum. After overtaking Windows Phone 8 earlier this year, the latest OS from Microsoft was found to be installed on 57.9 percent of all Windows Phone devices worldwide.

Windows Phone market share

AdDuplex found that although the overall market share for Windows Phone 8.1 has risen, the country by country market share varied by a large margin. In the Netherlands, the OS has an overwhelming share of 75 percent, whereas in countries like South Africa it was found to be 31 percent. In the US, Windows Phone 8.1 is at 46 percent.

Windows Phone device share

The data was collected from 4,832 Windows Phone apps running the AdDuplex's SDK v.2. In terms of market share of devices, the Lumia 520 continues to be the most popular with a share of 25.4 percent, although it is witnessing a decline from the 26.3 percent it commanded back in November.

The Lumia 630 also lost a few percentage points, likely due to the introduction of the Lumia 530, which now has a 3 percent market share. AdDuplex also found two new devices that are as yet unannounced. Microsoft's RM-1068 was found to be used exclusively in Brazil with a 4-inch WVGA display, and then there was a device from LG with model number LGVW820 boasting a 4.7-inch and a FWVGA (854 x 480) screen resolution.

For more statistics as well as a breakdown of Windows Phone's market share based on the country, head to the link below.

Source: SlideShare (AdDuplex)