Catchline: Lift Form Check

One cue for your snatch, clean or jerk, and the measurement behind it. Analysed on your iPhone: your video never leaves it, no signal needed, never used to train AI. Film a side-on rep. Get the one thing to fix, the reason for it, and later, whether it stuck. Most form checks hand you five faults and three opinions. Catchline gives you one cue per set: the earliest fault in the chain, which is usually the one causing the others. Fix that first. WHAT IT WORKS ON Snatch, clean and jerk. Kipping pull-up and bar muscle-up. HOW IT WORKS 1. Prop your phone side-on, about 3 m away, with the whole bar (or rig) in frame. Film 1 to 5 reps. 2. Catchline finds your key positions on your iPhone and stacks them into one frame, with the bar or hip path drawn through them. 3. You get one cue, the measurement behind it ("bar drifted 6 cm away at the hip"), and the frame where it happened. 4. Next session, film again. On Pull, Catchline checks the same number and tells you if the cue is working, still trying, or didn't stick. WHY YOU CAN TRUST IT, AND WHERE YOU SHOULDN'T Computer vision measures your positions from the video, on your iPhone. Rules written by weightlifting and gymnastics coaches decide which fault matters most. The cue is worded from those rules, not by a chatbot. Every cue is labeled "AI estimate", because the measurement behind it is one. If the angle is wrong, the bar is hidden, or two reps disagree, Catchline says so and asks you to film again. It would rather tell you it can't see than guess. Catchline is a coaching aid, not a medical tool. If something hurts, see a professional. PRIVACY When you are online, Catchline syncs a small record per lift (movement, load, whether it was made, which cue) so your cue history follows you to a new phone. No face tracking. No ads, no tracking. Delete everything from the You tab whenever you like. PLANS Your first 3 videos are free, no card needed. Pull: $2.99/month or $19.99/year. Unlimited videos (fair use), full cue history, "did it stick" checks, your best rep as a ghost overlay, 240 fps, no watermark. Founding member: $29.99 once. Pull for life. Limited to 500 seats; the counter in the app is live. Sign in with Apple before you buy, so your plan belongs to your account and moves with you. Prices are in USD and vary by country. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and are managed in your App Store account settings. Terms: https://yash-gadodia.github.io/catchline/legal/terms.html Privacy: https://yash-gadodia.github.io/catchline/legal/privacy.html