Chinese smartphone users have seen the number of apps available to them fall by 38.5 per cent over the past three years, with the most precipitous drop coming this year amid the country’s crackdowns on Big Tech platforms and internet content, showing how China’s fortified market structure has taken a toll on the digital sector. The total number of apps in Chinese app stores fell to just 2.78 million by October of this year, down from 4.52 million at the end of 2018, according to a South China Morning Post review of data compiled from the Ministry of Industry and…