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SwingMirror
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Automatic slow-motion replay for iPhone

See your swing
the moment you finish it.

SwingMirror watches the range with your iPhone’s front camera, recognises your swing as it happens, and plays it back in slow motion before you have looked up. Raise your left hand to keep it.

Join the release listSee how it works

Needs an iPhone on iOS 26 and somewhere to stand it. Nothing leaves your phone.

SwingMirror replaying a swing at quarter speed with the instruction Raise your left hand to save.

How it works

Stand. Swing. Watch it back.

The full story

  1. 01

    Stand in frame

    Prop the phone two to three metres away, front camera towards you, and step up to the ball. The rail at the bottom reads Address the moment the app sees you settle.

    The SwingMirror home screen: the reticle mark, the wordmark and a Start button.

  2. 02

    Swing

    No button, no timer. The app follows your hands through the swing and steps the rail through Top, Impact and Finish as they happen.

    The live screen at the finish of a swing: the phase rail lit at Finish with the instruction Swing captured.

  3. 03

    Watch it back

    The swing you just made plays back in slow motion before you have finished your follow-through. Raise your left hand to keep it; otherwise it is gone and the app is watching again.

    The replay screen: a position line, elapsed time, the ¼× speed readout and the instruction Raise your left hand to save.

What it does

A mirror that only shows the swing.

A mirror on the range shows you everything except the moment that matters, because you are looking at the ball. SwingMirror shows you only that moment, and only after it has happened.

  • Automatic, start to finish

    Tap Start once. Detection, replay and returning to watch are all automatic. Your hands stay on the club.

  • Three speeds

    Quarter, half and full speed. Change it with one tap between swings; the replay deck shows which one is active.

  • Save with your left hand

    Raise your left hand above your head during the replay and the clip lands in Photos. The right hand is ignored, so a wave never saves by accident.

  • A five-second mirror

    The app keeps only the last five seconds of camera in memory. A replay runs from a second before your backswing to a second after your finish.

  • Nothing leaves the phone

    No account, no analytics, no server. Frames are discarded as they age out; only a swing you save is ever written anywhere, and then only to your Photos.

  • Built for the range

    High-contrast controls that read over grass and sky, 44-point targets, sentence-case labels. It behaves like an instrument, not a feed.

Specification

The numbers.

Instruments should say what they do. This is what SwingMirror captures, keeps and writes.

Buffer
5 s rolling
Capture
1280 × 720 · 30 fps
Replay speeds
¼× · ½× · 1×
Detection
Address · Top · Impact · Finish
Save gesture
Left hand above head · ~1 s
Saved clip
H.264 · Photos library
Network
None
Requires
iPhone · iOS 26

Coming to the App Store

One email when it ships.

SwingMirror is in review with Apple. Leave an address and we will send exactly one email when it is live, nothing else.