LLYR
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For Swimmers How It Works The Tech Voices Get Early Access
Swimmer photographed underwater mid-freestyle stroke, trailing bubbles in a blue pool

Real-time swim-stroke correction

Fix your stroke.
Swim faster.

Point your camera at the pool. LLYR reads your body like a coach — joint by joint, stroke by stroke — and shows you exactly what to fix.

Get Early Access Watch it work
4
Strokes analyzed
33
Joint angles tracked
60fps
Live pose tracking
0
Coaches required

One tool, every lane

Built for every swimmer

From a first flutter kick to a sub-minute 100 — LLYR meets you where you swim.

Swimming instructor supporting a young child learning to swim in an indoor pool
Learn to swim

First strokes

Turn guesswork into gentle, visual feedback for new swimmers.

Competitive swimmers racing the butterfly stroke in an indoor pool
Competitive

Race-ready

Hunt tenths. Catch the flaws that separate heats.

Triathletes in swim caps swimming through open ocean water during a race
Triathlon

Open water

Build an efficient, sustainable stroke for the long leg.

Adult swimmer training freestyle underwater with cap and goggles
Self-learn

Your own coach

Improve solo, session after session — no clinic needed.

Three moves

Record. Analyze. Correct.

1 Young swimmer practicing with a kickboard on a sunny day by the pool

Record

Film poolside in real time, or drop in a video from your gallery.

2 Competitive swimmer in action performing freestyle in a blue pool

Analyze

On-device pose tracking maps every joint and reads your stroke phases.

3 Underwater view of a swimmer practicing freestyle technique in a clear pool

Correct

See faults flagged the instant they happen, with the fix overlaid on you.

Llyr home screen with stroke and camera-view selection Video import and frame-by-frame review screen Llyr help screen with camera setup and filming guidance

Under the surface

A coach's eye, in your pocket

  • Skeleton & joint-angle tracking

    Every limb mapped frame-by-frame with exact angles.

  • Ghost-form comparison

    Overlay your stroke against an ideal target shape.

  • Live fault alerts

    Drop hips, crossovers and dead spots flagged as they happen.

  • On-device & private

    Analysis runs on your phone — your footage stays yours.

Testaments on tool use

Swimmers who stopped guessing

"I coach 40 kids a week. LLYR lets every one of them see the catch fault I'd normally have to describe. Game-changer on deck."
Portrait of a swim coach
Marco D.
Age-group coach
"Fixed my hip drop before my first Ironman swim. Two weeks of the ghost-form overlay did what a year of feel never could."
Portrait of a triathlete
Priya R.
Triathlete
"My daughter finally 'gets' streamline because she can watch her own line light up green. She asks to practise now."
Portrait of a swim-lesson parent
Hannah L.
Learn-to-swim parent
"Taught myself butterfly at 34. The live fault banner is basically a coach yelling 'timing!' — except it's right, every time."
Portrait of a self-taught masters swimmer
Devin K.
Masters self-learner
Dynamic black-and-white triathlon swim start with athletes churning the water

Your next
PB starts here

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