Five years ago, the smartphone market was quite fragmented.
BlackBerry was still going strong, Symbian was present on millions of Nokia phones and Samsung was still experimenting with its own operating system, Bada.
Nowadays, there are basically just two relevant smartphone platforms left. Devices running Android and iOS accounted for more than 96% of global smartphone shipments in 2014, according to data published by IDC. The only other platform with so much as a hint of relevance left is Windows Phone, although Microsoft surely had other numbers in mind when it debuted Windows Phone 7 in 2010.
This chart breaks down global smartphone shipments by operating system.
You will find more statistics at Statista