Skip to content
Spotter home
For lifters who train alone

The fastest way to add muscle isn’t more sets.

It’s fixing the ones you already do. Film a set, and Spotter scores your technique rep by rep, then tells you the one thing to change.

Join the beta

What it isn’t

Spotter is not a medical device, and it is not a substitute for a coach or a physio. What you get is an automated second opinion, not a verdict. Check it against how the lift actually felt, and if a cue feels wrong for your body, ignore it.

We’d rather show you where it failed

How it works

  1. Film your set

    One clip, from the side. Audio is stripped on your phone before anything is uploaded.

  2. Get it scored

    An AI model watches the movement and returns a form score out of 100.

  3. See what to fix

    Written coaching on the specific thing costing you reps, tracked across sessions.