Docs / Video Recording

Video Recording

Record races with the timer overlay rendered into every frame in real time.

How It Works

RaceTimerPro records video directly from the camera and composites the timer overlay onto each frame in real time using GPU-accelerated Core Image processing. The timer, lap data, race name, and environmental data are all burned into the video.

Video Quality

QualityResolutionTier
Standard720p (1280x720)Free
HD1080p (1920x1080)Pro
4K UHD2160p (3840x2160)Pro

Frame Rates

Pro users can adjust the recording frame rate:

Frame RateBest For
30 fpsStandard recording, smaller file size
60 fpsSmooth motion, good for fast action
120 fpsSlow-motion replay at 4x slowdown
240 fpsUltra slow-motion for photo finishes

Tip: Higher frame rates require more light and produce larger files. 120fps and 240fps are best used in daylight conditions. Not all devices support all frame rates — the app automatically detects what your camera supports.

Pre/Post Record Buffer (Arm Mode)

With Pro, you can arm the recording before starting the timer. This captures video continuously in a buffer so when you press start, the recording includes seconds before the race began.

Watermark

Free tier videos include a small "RT" watermark badge. Upgrading to Pro or higher removes it.

Audio

Video recordings include audio captured from the device microphone. The shared camera session pre-warms audio at launch to avoid delays when you start recording.