This is a great no frills calculator and is big enough for 60 plus eyes. Deleted the one that came with iPad Air. My one small but is that bright red background of the "C". It is just like the red notifications on FB or Messenger or Mail!! Drives me crazy. Every time I would open iPad, Id for a split second, think I had notifications. Had to move it off home page so I now have to swipe to use it. Change it to some other color or give us a choice.