First, welcome to the forum - Second, tell us which model iPhone that youown; if a recent or new model, you should already have a current version of iOS on the device - the newest iOS version is 10.3.1 - you can obtain the most recent iOS Apple Guides HERE - download to your iBooks app to discover its features. As to comparing iOS to Windows or Android, you need to be more specific, i.e. not sure what your need may be since you own an iPhone and have to learn about its operating system? Dave
My first smartphone was on android, then I went to the iphone and started using ios. I can say that for 90% of users, the difference is only in the interface. Because the main functionality of them is very similar to each other. Maybe you are interested in something specific? I can say that I like ios more due to ease of use.
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