I have an iPhone 6s Plus and was looking for a prepaid Data Plan for an old iPhone 5s that I use to take with me when I exercise. For anyone looking for just data for an iPhone or other IOS device this may be an option for you. Charge.co is now offering $15.00 per gig for Data (no voice or SMS) that never expires . I purchased one gig last week and received the SIM yesterday. It seems to work well and works on the Sprint network and at least for me there seems to be good LTE coverage in my area. I'm sure the one gig will last more than 6 months for my limited usage.