1 · Frame the court
Keep the relevant sideline or baseline visible. Fix the phone in a stable position and check that players will not regularly block the important area.
UNDERSTAND CHALLENGE REPLAY
Look at the point before making the call.
FanEye keeps recent footage on each phone. Tap Challenge after a disputed point to review the moment together, then return to the court.
Free to start · Optional in-app subscriptions for more phones.
2 · Start recording
Start the game in the app. Recent footage is temporarily retained on the phone; this is a rolling replay buffer, not an archive of the entire match.
3 · Challenge and inspect
Tap Challenge promptly. Slow the replay, move back and forth and pause at the key moment. Step through the frames or enlarge the landing area for a closer look.
4 · Agree and return
Players or officials review the footage and make the decision. Return to live view to continue. You may actively save a short slow-motion clip to Photos.
How many phones?
One phone works for free. Free online rooms allow up to 2 phones; Pro allows up to 6. Professional includes Pro plus local connection for 2–6 phones and a dedicated controller.
What replay cannot promise
FanEye does not automatically detect the shuttle's landing or decide IN or OUT. A blocked view or unclear frame may remain inconclusive. It does not replace an official referee or professional line-calling system.
Replay is a reference, not an automatic verdict.
FanEye does not automatically detect the shuttle landing or decide IN or OUT. Players or officials review the footage. Device, lighting and network conditions matter.
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