Does a iPhone charges you for everything?

I'm looking into getting a iPhone instead of a android. Plenty of people told me iPhones are so expensive because they charge everything you do to your phone bill. Is this true or false? I love apple devices but a iPhone seem really out of my league

They only charge your phone bill if you use data. Just go to settings, turn off data and use Wi-Fi.

Facebook, Twitter, and many other popular apps are free on iPhone. Free Podcasts are still free. There are many apps that have in game purchases. You might have to buy an app that you already purchased on ipad to use the same paid app on your iphone so there are things you might pay extra for.