Virtua Tennis Challenge, one of the most popular tennis franchises of all time, has just gone on sale for $0.99. This game was the free app of the day back in May, but other than that, this is the first time it’s dropped below its regular price of $4.99. The game features multiple modes including quick matches, a world tour, doubles matches, and multiplayer. It works with either the Fire TV or Fire TV Stick, but does require a Game Controller.