For before-and-after, left-against-right, athlete-against-athlete
ProSide-by-side comparison
Two measurements, lined up on the same moment
Put two measurements next to each other, scrub each until they sit on the same instant of the movement, save that as a compare point, and read the difference joint by joint from there.
- Clips at once
- 2
- Alignment
- Saved, and reused
- Difference per joint
- At the playhead and across the movement
- Plan
- Pro and above
Alignment is the hard part, so you do it
Two clips of the same movement are never the same length and never start at the same instant. Rather than guess at that, each clip gets its own scrubber: line them both up on the moment you care about — the bottom of the squat, the catch, the point of release — and save it.
That moment is then kept on both clips. Time is measured from it rather than from the start of the file, so the two are read against a shared instant instead of a shared clock, and a tempo difference stays visible as one clip simply running longer on one side of the point than the other. Swap either clip for another and the alignment re-establishes itself from the point already saved on it.
What you can read off it
One play button drives both clips, with the trailing one nudged back into step if it slips. A table gives every joint's angle on each side and the difference between them at the playhead, taking the short way round the circle so two angles ten degrees apart never read as three hundred and fifty.
Below that, each joint gets its own small chart with both clips drawn on it against time measured from the compare point, and each clip's own playhead marked. Where the tracking jumps around on either side, the row says so rather than printing a confident difference between two numbers that are not measurements.
Comparisons you can come back to
Saving the compare point records the pair, so a comparison you will want again is one click from the Compare page rather than two clips to find in a list.