Frequently asked questions.
Clear, factual answers regarding test protocols, acoustic timing calibration, squad testing workflows, and scientific methodology.
Which operating systems and devices are supported?
Time4Test is available on Google Play for Android devices (Android 10.0 or later) and designed for smartphones and tablets. Apple iOS release will follow.
Does the app work offline on remote tracks without Wi-Fi?
Yes, 100%. All 40+ standardized audio tracks, countdown timers, stage pacing engines, and calculation formulas operate locally on your device without requiring an active internet connection. Data syncs automatically once back in coverage.
How accurate are the audio pacing cues?
Audio beeps and stage whistles are synthesized using low-level audio synthesis with sub-millisecond clock scheduling, ensuring that stage intervals match official sports testing protocols down to 0.01 seconds without audio drift.
How does optical camera testing work for agility and jumps?
Time4Test utilizes on-device computer vision and Google ML Kit to detect motion, athlete line-crossings, and jump mechanics in real time. Processing is 100% local in device memory with zero video cloud upload.
Can coaches test an entire squad simultaneously?
Yes. The multi-athlete testing workflow allows coaches to load a team roster (25–30+ players) into a progressive test like VAMEVAL or Yo-Yo IR1. As each athlete drops off or fails two consecutive cones, simply tap their jersey avatar to record their exact stage and split time.
What file formats can be exported from test sessions?
Coaches can export test results as formatted Excel / CSV spreadsheets (with 0.01s split matrices) and clean, multi-page publication-grade PDF reports for sharing with club medical and performance staff.
How does Time4Test calculate Maximal Aerobic Speed (MAS / VMA) and VO2max?
Time4Test uses validated peer-reviewed equations established by test creators (Cazorla & Léger 1993, Bangsbo 2008, Buchheit 2008, Cooper 1968). Partial intervals achieved in incomplete stages are factored in with exact mathematical precision.