If you buy your iPhone directly from Apple it cames with no plan (you need to find yourself a telephony provider) and you can use the iPhone with your home Wifi

If you buy your iPhone directly from Apple it cames with no plan (you need to find yourself a telephony provider) and you can use the iPhone with your home Wifi. I suppose you want one for programming and you don't plan to use it as a real phone, no monthly fee for you ...