It's not strange at all. They don't measure device units with their stats. They measure "time spent in the browser". Considering an iPad is used a lot more for web browsing than a phone, whether it's iPhone or Android, it dramatically skews the results in favor of "iOS". Plus, they measure stock Android browser usage. And many Android users don't even use the stock browser.
But the main point is they don't measure device units, so if you're looking for that, don't look at browser stats, especially not the ones from Net Marketshare. They've always been misleading like that. They've even added the iOS browser numbers to desktop Safari numbers once and said "Safari had much higher growth than Chrome" - which is just silly.
If you want device numbers, just listen to what the companies themselves are saying. The last numbers from Apple for all iOS devices were 250 million, and 200 million Android devices. Clearly the Net Marketshare stats don't show that at all. They show iOS being 3x bigger, which is very misleading, and what's upsetting is that they actually bank on it.
But the main point is they don't measure device units, so if you're looking for that, don't look at browser stats, especially not the ones from Net Marketshare. They've always been misleading like that. They've even added the iOS browser numbers to desktop Safari numbers once and said "Safari had much higher growth than Chrome" - which is just silly.
If you want device numbers, just listen to what the companies themselves are saying. The last numbers from Apple for all iOS devices were 250 million, and 200 million Android devices. Clearly the Net Marketshare stats don't show that at all. They show iOS being 3x bigger, which is very misleading, and what's upsetting is that they actually bank on it.