Back then, in 2010, the smartphone market was still very fragmented. BlackBerry was still very successful, Symbian was present on millions of Nokia phones and Samsung was still experimenting with its own Bada operating system. Both for App developer It wasn't easy for publishers to decide which platforms to support and which to ignore.
Nowadays it is much easier, as there are only two relevant smartphone platforms. As our chart shows, according to the market research company Gartner In 2017, 99.9 % of global smartphone sales to end consumers were attributable to devices with Android and iOS. All other platforms, including the former market leaders BlackBerry and Microsoft's Windows Phone, have become completely irrelevant.
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