SkiVid Analyse app icon

SkiVid Analyse · for Mac

See the movement.
Measure the technique.

A video analyser for ski technique. Step through your runs frame by frame, measure knee, hip and pole angles, time every push, and put two runs side by side. Built for skiers and coaches, and fully offline.

Works offline No account Videos never leave your Mac One purchase, no subscription
Coming soon to the Mac App Store See what it does
SkiVid Analyse showing a cross-country skier with five joint angles and a body-lean line drawn on one frame, the video library and the list of drawings on the left, and the timeline with markers below.
Five angles and a lean line on a single frame of a classic-technique video.

Frame by frameStep forward and back one frame at a time, even in 240 fps slow motion

0.1× – 3×Playback speed, with zoom, pan and mirror

A | BTwo runs side by side or overlaid, kept in sync

0 uploadsEverything is processed on your Mac

What it does

Everything you need to
review a run.

Draw straight onto the video. Every line and angle is measured live and stays pinned to the frame where you drew it.

Angles and lines

Measure knee, hip and ankle angles, body lean and pole angle. Lines show their tilt to vertical, or to the slope once you draw it.

Tempo and timing

Tap pole plants and left and right pushes while you watch. The app works out cycle time and rhythm, corrected for slow motion.

Compare two runs

Put two videos side by side or overlay them with transparency. Align them on a marker and they play in sync.

Motion trails

Follow a hip, a knee or a ski tip frame by frame and see its path, including how far it rises and drops.

Markers and notes

Mark key moments, name them and jump between them. Each video in the library shows what it already contains at a glance.

Saved next to the video

Drawings auto-save in a small file beside each video, so they travel with your files. Export any frame as an image to share with your coach.

Support

Get help.

Questions, bug reports and ideas are welcome by email at rauno@raunoa.com. Please mention your macOS version, and if a video causes the problem, the camera and recording settings (for example GoPro, 4K, 240 fps).

Inside the app, press ? or choose ⋯ → Quick guide for a list of all tools and keyboard shortcuts.

Common questions

Where are my drawings saved?

Next to each video, in a small file named <video name>.skivid. Keep it with the video when you move or back up your files, and the drawings come back when you open the video again.

A video does not play.

The app plays what macOS can decode. If a clip still fails, the app offers Make a playable copy, which creates a 1080p copy at the original frame rate, so every slow-motion frame is kept.

My videos are on an external drive or SD card.

That works. Videos play from where they are. If the drive is unplugged, the videos are greyed out in the list and reconnect when the drive is back.

How accurate are the angles?

Angles and lengths are measured in the flat video image, so the camera angle affects them. For the most comparable results, film from the side and from the same spot each time, and use the slope line to measure relative to the hill.

Does the app collect any data?

No. See the Privacy Policy.