The rate of growth of iOS usage in China seemingly slowed at the start of the year, according to an analyst group, though it is suggested this may be more from consumer shopping habits than device popularity. KantarWorldPanel claims growth in a three-month period ending in January of this year reduced down to a rate slower than observed in the market during late 2014, though it still remains the most popular brand in China, holding on to a 25 percent share of total smartphone sales in the region during the quarter.