Nate,
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I have used an Android phone with FT8CN and a QDX for about a dozen POTA activations. I'd call it workable, but not really enjoyable. But I'm not about to lug a laptop or tablet into the backcountry ?. I recommend trying it at home first to learn some of the quirks with the app before an activation. It seems much more automated by default compared to using WSJT-X.
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Jared, 73, N7MAW?