Set the phone side-on and run past it. Llyr reads your body through the stride, counts your steps per minute, and gives you cues you can actually use. The numbers it can't work out honestly, it leaves out.
One phone, propped at the sideNothing to strap onReads you as you moveAnalysis runs on the phone
Solid is what it found from the side.92° is his front knee, worked out from those points.Hatched is his feet, outside the frame. Llyr won't call foot strike.
One number it trusts. Four it won't invent.
Running apps love a spec sheet: contact time to the millisecond, a foot-strike verdict, a pronation grade, an injury risk score.
A phone camera only looks at your stride about fifteen times a second. At that rate most of those numbers are guesses with a decimal point on them, so Llyr leaves them out.
Can see
Cadence
Steps per minute is slow enough to count properly fifteen times a second, so it's the one number Llyr stands behind.
Can see
Your body position through the stride
Your trunk, arms and legs from the side, followed frame by frame the whole way through.
Can see
Cues on the replay, in plain words
You watch it back from the side with the correction drawn on your own video.
Can't see
Foot strike and ground contact time
Both happen in the gaps between frames. A verdict here would be a coin toss with a label on it.
Can't see
Pronation, or any angle read from the front
Pronation needs a view from behind and more detail than one camera gives. From the front, Llyr can't tell how far away a joint is, so any exact angle would be invented.
Can't see
Injury risk
Nobody has shown that running a certain way causes a certain injury. Llyr is not going to tell you what's about to hurt.
Three moves, trackside.
1
Frame it
Phone side-on to the way you're running, whole body in shot. Llyr tells you to tilt it up or down before you start.
2
Run
Run an even stretch at a normal effort. Sprinting for the camera looks like a different runner.
3
Read it back
Your steps per minute, plus what changed in your shape, with a photo saved for each thing it flagged.
What we can promise today.
In early access
No runner has used this long enough to quote, so there are no reviews here. When there are real ones, they'll carry real names.
Shape, not times
Llyr looks at how you move. It doesn't time you, race you, or tell you what a session did for your fitness.
What it won't say is built in
Those four are blocked in the code itself, not just left out of the writing. No part of the app can get round them.
Judge it yourself
Join the list, film one steady stretch, and see whether the cues match what you already suspect about your running.
See what your stride does.
Join the early-access list. Sign up here and running is what you'll hear about.
100Seats in the first group
That is the whole of it. We would rather have a hundred people
actually filming and telling us what broke than a list of ten
thousand who never open it.
No spam. Just an email when there's something to try.
