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Former NBA star Steve Nash, left, joins Apple on stage at today’s press event to talk about HomeCourt, a new augmented reality app. (Screenshot via Apple livestream)

A startup wants to help basketball players improve their jump shot — with just a smartphone.

Among the flurry of announcements made at its press event on Wednesday, Apple showed off HomeCourt, a new iPhone app that uses augmented reality to track basketball shots. AR tech built into the iPhone — including the new A12 Bionic chip — and artificial intelligence technology developed by HomeCourt maker Nex Team can detect a hoop and basketball to measure kinematics, trajectory, release times, and number of shots made.

Apple brought out former NBA star point guard Steve Nash and a Nex Team founder David Lee to unveil the app on stage. Nash is an investor in HomeCourt, as are others including Dallas Mavericks owner Mark Cuban, Atlanta Hawks point guard Jeremy Lin, and Philadelphia 76ers GM Sam Hinkie. Lee previously founded EditGrid, which Apple acquired in 2008.

Several college basketball programs are using the app, including Duke, Stanford, Florida, and others.

Apple is investing heavily in augmented reality tech. The company showed off a similar sports-related AR feature last year with an MLB At Bat app that let fans at a baseball game point an iPhone at the live action and see player stats on the screen above the actual players.

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