VVana Labs

Most cricket on Earth is played without officials: club, tape-ball and street matches where scoring is memory and disputes settle arguments, not matches. Pocket Umpire turns one phone video into a ball-by-ball scorebook, verdict cards, and shareable highlights. An on-device edge layer (audio onset + motion-blob tracking, $0) segments each ball and selects contact/end stills — only ~60KB ever leaves the device. SAM 3.1 checks the stumps, Muse Spark judges the outcome from two stills + audio-crack SNR, MCC Laws geometry decides where a calibrated angle exists, and a human can correct any ball; corrections ingest as ground-truth labels. Verified: 6/6 on a real night tape-ball over vs hand labels (14/0), reproduced by three pipeline runs at ≈$0.0029/ball in ≈6s. A daylight second match scores 8/10 agreement against frame-by-frame labels (both misses published — undercalled quick singles), and a third venue in Dubai returns 6/6 verdicts. Meta models only via api.meta.ai; total hackathon spend ≈ $0.62.