On-device neural processing replaces cloud latency for real-time swing feedback
What happened
Greenside AI runs its entire analysis stack on the iPhone GPU and Neural Engine. The model measures kinematic variables such as pelvis rotation speed and club-head acceleration, then applies predictive regression to forecast ball-flight outcomes. All computation occurs locally, so feedback arrives in under two seconds with or without internet.
Why it matters
Players can iterate during a range session without waiting for uploads or risking dropped connections. The workflow moves from post-round review to immediate correction loops. This tightens the feedback cycle from minutes to seconds.
Who's doing it
Greenside AI's beta users at two private clubs in Florida logged 4,200 swings over six weeks. Average club-path error dropped from 5.8 degrees to 3.1 degrees after using the on-device coaching prompts.
Try it
- Visit https://www.greenside.ai/ and request the iOS beta build.
- Open the app on the range, select Swing Analysis, and perform five full swings; the Neural Engine processes each clip locally.
- Review the listed kinematic deviations and apply the single highest-impact correction before the next set of swings.
Read the original at greenside.ai
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Karen what's the catch
Who gave Greenside AI permission to run swing analysis on my iPhone's Neural Engine without asking?!
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