Lateral Raise Form Check
Is your lateral raise actually good? Prop your phone up and find out — GoodReps watches your shoulder angle (hip → shoulder → wrist) live and scores every rep as you train your shoulders. Free, in your browser, processed entirely on your device.
▶ Check My Form FreeHOW TO DO A PROPER LATERAL RAISE
Setup Stand facing the camera, weights at your sides, a slight bend in your elbows.
- Raise both arms out to the sides up to shoulder height.
- Lead with your elbows, palms down.
- Lower slowly — no swinging.
This is the same instruction sheet you’ll find on the ⓘ panel inside the app — with an animated demo next to it.
THREE STEPS TO A SCORED LATERAL RAISE
Prop your phone and get in frame
Set your phone at roughly torso height and stand facing the camera. The built-in camera test confirms your lighting, distance, and angle with live green checks before you start.
The AI locks a 17-point skeleton on you
GoodReps measures your shoulder angle (hip → shoulder → wrist) in real time, entirely on your device. No wearables, no sensors. Light dumbbells go a surprisingly long way here — log the weight, track PRs.
Move — and watch the form bar
The bar fills as you travel from ~18° toward ~65° at the bottom. Stop short and it tells you; a rep only counts through the full range of motion.
WHAT THE CAMERA WATCHES
- Your arm angle from your side, live — from roughly 18° at rest up toward 65° at shoulder height. Tiny pulses don't bank; full raises do.
- Your personal range of motion — after 3 clean reps the counter calibrates to your shoulders, so it stays honest without being unfair.
- Whether you actually get there — stall below the line and the form cue says it plainly: "Raise to shoulder height."
COMMON LATERAL RAISE MISTAKES
Going too heavy
The fastest way to turn a shoulder exercise into a trap-and-momentum exercise. Drop the weight until the raise is smooth and quiet.
Shrugging into the raise
If your shoulders climb toward your ears, your traps are stealing the rep. Keep them pulled down and let the delts lift.
Swinging from the hips
A little body-English on the way up means the weight is doing the falling and you're doing the cheating. Slight elbow bend, strict tempo.
Raising past shoulder height
Higher isn't better — above parallel the load shifts off the side delts. Stop at shoulder height, pause a beat, lower slow.
PRIVATE BY DESIGN
Pose detection runs in your browser via TensorFlow.js. Camera frames are analyzed in real time and immediately discarded — nothing is recorded, nothing leaves your phone, and we never see them. Sign-in is optional; skip it and everything stays local.
QUESTIONS, ANSWERED
What weight should I use for lateral raises?
Lighter than you think — most people do their cleanest raises with 5–15 lb dumbbells. Log whatever you use and the app tracks your PRs as you progress.
Does it work in a home gym or low light?
Run the built-in camera test first — it checks your lighting, distance, and angle with live green checks before you start. If a rep still slips through, manual counting is always one tap away.
Is my camera feed uploaded anywhere?
No. Pose detection runs entirely on your phone, in your browser. Frames are analyzed in real time and immediately discarded — nothing is recorded, nothing is uploaded.
RELATED GUIDES
Free forever — camera counting for all 60 exercises, no account needed. Pro (voice coaching, programs, depth-camera form checks) is $7/mo, $49/yr, or $99 once. No ads, ever.