FREE Reaction Timer helps you build focused reaction drills with clear signals and flexible timing. Configure rounds, round length, and rest, then set a random reaction interval (From–To) with optional bias toward shorter or longer waits. Each cue uses a crisp beep, a subtle haptic tap, and a bright green camera‑style flash to make responses unmistakable.

In Setup Screen you can find wheel pickers for quick input, large legible type, and a clean card layout that works in portrait and landscape.

Features:
- Custom sessions: rounds, round/time length, and rest
- Random reaction cues: interval From–To with bias control
- Clear signals: beep, haptics, and green flash
- Warm‑up, round/rest cycle, and finish gong
- Pause/resume, skip to previous/next interval, quick reset
- Wheel pickers for fast, precise adjustments
- Large, readable timer with progress indicator
- Works offline; no account required
- Audio mixes with other apps; great with headphones
- Designed for boxing, MMA, sports, and cognitive training
- Build sharper reflexes, stay focused, and track round progress—whether you’re training on the mat, in the gym, or at home.