I have a Robert Kaufman's Quilt Calculator app on my droid phone and I use that one fairly often. I also have a Quilter's Club of America App that finds quilts shops wherever I am. I also have an app that has some quilt backgrounds. I also use the JoAnn and Hobby Lobby coupon apps......I also us EQ7 on my PC. I do not have any Apple devices. I use a droid phone and a droid tablet. Hope that helps.....