SprintLens vs Sprint Starter

SprintLens is a photo finish timing app designed to measure times with high accuracy using just two smartphones. It is ideal for track and field, swimming, and other timed sports. Perfect for team managers, coaches, and club advisors! As a runner myself, I created this app from the perspective of athletes and team managers who want precise and flexible timing tools. Place one smartphone at the start and another at the finish. SprintLens combines the start signal with high-frame-rate video recorded at the finish, allowing you to review the exact finish moment frame by frame. It is designed to make timing more accurate and easier to understand in situations where stopping a manual stopwatch is not enough, such as sprints, swimming races, time trials, practice sessions, and school club activities. 【Key Features】 ・Measure times using two smartphones placed at the start and finish ・Timing linked with the start signal ・High-frame-rate video recording at the finish ・Frame-by-frame video review to determine the finish time ・Useful for sprints, 100m races, time trials, club activities, and practice sessions ・Create a timing setup using only smartphones, without dedicated photo finish equipment 【Recommended For】 ・Track and field and swimming practice ・Accurate timing for 100m, 200m, hurdles, and other short-distance events ・Recording practice results for teams and school clubs ・Situations where manual stopwatch timing is difficult ・Reviewing the exact finish moment on video SprintLens is designed to help you check the time from start to finish using video and synchronized timing data. ※Timing accuracy may vary depending on the device, frame rate, network environment, and recording conditions. ※This app is not guaranteed to replace official photo finish timing systems used in sanctioned competitions.

Take your starting block acceleration to the next level! Sprint Starter is the premier race starter simulator and reaction timer built for track and field sprinters, hurdlers, swimmers, and competitive athletes. Train against realistic starter cadences with customizable hold delays between "Set" and the gun to sharpen your reaction speed and eliminate false starts. KEY FEATURES: • Authentic Race Sequence: High-fidelity voice commands for "On your marks", "Set", followed by an explosive starting pistol gunshot. • Randomized Hold Delay: Variable timing between "Set" and the gun prevents anticipation and forces genuine auditory reflex reaction. • False Start Detection: Instant feedback for early taps and standard sub-100ms false start disqualification tracking. • Millisecond Precision: Accurate reaction time measurement to 0.001s with detailed session logs and trend analysis. • Voice Engine Customization: Adjust speech rate, pitch, and choose between English, Italian, German, French, and Spanish commands. • Historical Performance: Review your personal bests, average reaction times, and reaction consistency over time. Step onto the blocks, listen for the gun, and blast out of the blocks with Sprint Starter!