But does that matter when they have milions of people in that marked. Isn't that a size where it really shouldn't matter anymore if there is another similar big

But does that matter when they have milions of people in that marked. Isn't that a size where it really shouldn't matter anymore if there is another similar bigger marked? Also for some serivces iOs users are the large majority, like more or less any "real premium" service (Like apps you have to pay 10 or so+$ a month or 100+$ when buying them).