I have used the square for years. I got tired of all the add-on fees that the credit card companies kept adding at my store so I got rid of all of it and got square. (I also purchased a tablet because it was easier to use than the phone.) Now, I don't have my store but I continue to use the square (on my phone) for various venues. They just sent me info about upgrading to the chip reader, but I am still looking into it. My understanding is that you will still be able to use the swipe cards for quite awhile.