JUMP321: Jump Rope Counter

Open the app. Jump. That's the whole flow. JUMP321 opens straight to the front camera, the way a camera app should. Prop the phone against a wall, step back, and it starts counting. There is no home screen to get past, no program to choose, no course library, no badge asking you to come back tomorrow. You are jumping about eight seconds after you pick up the rope. THE HARD PART IS STARTING Most days you don't skip your workout because you lack discipline. You skip it because starting costs something: unlock, open, wait, pick a plan, pick a duration, skip the upsell. By the time the app is ready, you aren't. So we removed all of it. One screen. The rope is the interface. THEN THE HARD PART IS THE NEXT SIXTY SECONDS A minute in, your calves burn and the only thing left to think about is your calves. That's when people stop. JUMP321 moves your attention off your legs. Big live count. A rhythm strip that fills as you speed up and shifts colour when you cross into the burn and HIIT zones. Calories ticking. A sound on every fiftieth jump. You stop counting pain and start chasing a number — it plays like a game, and games are easy to stay inside. In our own testing, sessions with the app running lasted more than twice as long, and burned more than twice the calories, as the same people jumping without it. Not because it pushed harder. Because it was more interesting. THEN YOU COME BACK Every session lands in a day report: total jumps, active calories, time in each intensity zone, and a rhythm curve showing exactly where you slowed down. Days stack into a history you can scroll. And you can turn any day into a share card — your numbers over your own selfie, sized for stories. Post it and your friends become the accountability you were never going to give yourself. HOW IT WORKS • Prop your phone up, front camera facing you, and step back about two metres • The frame turns yellow while it finds you, green when you're set • 2 — 1 — GO, then jump • Walk out of frame and it pauses instead of guessing; your count is safe • Tap STOP when you're done Counting runs entirely on-device with Apple's Vision framework. No video is recorded, nothing is uploaded, no account to create. Your weight — used only to estimate calories — stays on your phone. Sessions sync across your own devices through your private iCloud. WHAT YOU GET • Live jump count, pace, and rhythm strip • Active calories, fat grams, and plain-English comparisons • Day reports with rhythm curves • Full history, kept forever • Share cards, with or without a selfie • Works with any rope, in any room with space to swing one PRICING Your first five sessions are free, with everything unlocked — no trial countdown, no card needed. After that, JUMP321 Pro is $6.99/month, or $34.99/year with a 7-day free trial. History, reports, and share cards are never locked, including everything you recorded before subscribing. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel any time in your Apple ID settings. Terms of Use: https://artpnp01.github.io/jumprope321-legal/terms.html Privacy Policy: https://artpnp01.github.io/jumprope321-legal/