The Celestron Auto Focus display renders properly on an Android smartphone (Samsung Note 20) but does not fully render on a tablet (Kindle). It only opens about 1/3 to 1/2 of the way not allowing a full view of the page and thus a key button is not available. You can get it to randomly "slide" out a little further by rotating the tablet, but never more than about 1/2 way. The controls that are in the view work, but the Enter button or Goto button is not available when the Display does not fully slide out or render properly thus severely limiting its usefulness. Works great on the Smartphone, so there are alternatives, just the bigger screen of the Tablet really allows SkySafari Pro to show off all of its awesome attributes.