BolTimer

High-frame-rate finish line timing for track training—flash trigger, sound detect, and frame-by-frame review.

BolTimer is a finish-line electronic timing app built for track & field training and auxiliary race timing.

KEY FEATURES • High-frame-rate recording at the finish line (up to 240 fps on supported iPhones) • Flash or sound trigger to mark T0 (start moment) • Frame-by-frame review with up to 8 lanes • Drag scores to lanes, calibrate T0, fine-tune within ±3 ms • Local race history—your videos and results stay on your device • Optional paired finish-line starter with auto sound detection

HOW IT WORKS

1. Align the flash detection zone and tap Stand By
2. After the start signal, BolTimer records the finish sprint
3. Review each frame and mark lane times
4. Copy results or export annotated video to Photos

REQUIREMENTS • iPhone with high-frame-rate video support (iOS 17+) • Camera and microphone permission for timing features • Real device required—Simulator cannot access the camera

DATA & PRIVACY Recordings and results are stored locally on your device. BolTimer does not upload your race videos to our servers.

MEMBERSHIP Free trial sessions included. Optional weekly trial or lifetime membership unlocks unlimited use. Purchases are processed by Apple.

Support: https://www.qinggetech.cn/boltimer-support/