Really? Microsoft, Amazon, Google, and Apple already have my CC number. If I could buy all my apps through (ex:) the Microsoft store that exists on PC, Androi

Really? Microsoft, Amazon, Google, and Apple already have my CC number. If I could buy all my apps through (ex:) the Microsoft store that exists on PC, Android, and iOS I could delete my CC info from Google and Apple. That's a win in my book. Maybe the competition would force all of them to innovate a bit. Wouldn't it be nice if you could give your CC number, but set a hard limit on in-app purchases? Ex: Here's my CC, but you're not allowed to charge more than $50 / month to it. I bet there are a lot of people that have gotten multi thousand dollar IAP bills that wouldn't mind a better system for some of that stuff.