I have an iphone 7 with a basic 25$ month plan - unlimited texting and unlimited calling. I am thinking of adding the 2$/month data block with picture message so I don't get surprise data usage charges, but can still send picture via MMS texting. However when I am home, I connect my iPhone to my home wifi internet. With this data block option in place, will I still be able to use my home wifi to use apps, go on the internet, etc.?