According to research done by StockApps, Apple's iOS has been gaining ground for the last four years and has eaten a good chunk of Android's global OS market share. However, Google's OS still dominates the market.

In 2018, Android had a 77.32% market share while this year, it is estimated that about 69.74% of all devices in the world run Android. That's almost an 8% drop in four years. In contrast, iOS has grown from 19.4% to 25.49% throughout the same period.

There could be many reasons behind this but the most obvious one is that Apple has expanded its smartphone and tablet lineup...