Simple mode

Tap where you want your serve to land and pick a serve: flat, slice, topspin-slice or kick. You'll see the speed and spin that get it there best, how much room for error it has, how hard it is to return, and how it scores.

Tap where you want your tennis serve to land, pick flat, slice, topspin-slice or kick, and see the speed and spin that get it there best, with its margin for error, how hard it is for a returner from NTRP 2.0 to 5.0 to return, and a score.

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