I have got a lot of questions saying me if its posible to get hotmail on the iphone. I have to say that its very simple, and you dont need any software.
As you might know, with the iphone we have direct shortcuts to many email providers, like gmail, aol, etc. But hotmail doesnt support pop3 on its free version (yes, the one that you own) and its almost imposible to setup it in the mail app of the iphone. If you really need to have it on your iphone app, you should buy hotmail plus (i really dont remember the cost, but it was about 25$ a year)

But its always a free way to do this. And its very simple, open safari browser, then enter this on the url box:

http://mobile.live.com

login with your account details, and thats it.
NOTE: remember that you must have an internet conection, wifi or edge in order to open your mails!