JustJumpRope

A jump rope counter for iPhone and iPad

No fluff. Just jump.

Prop up your phone and jump. The camera counts on the phone, so you stop counting and stay in rhythm. Built for jumping at home, in a garage, or anywhere that is not a gym.

Download on the App Store
Demo clip: real interface, stand-in footage.
How it counts

It counts, so you don't have to.

Counting in your head is how you lose count. One catch, one stray thought, and you are guessing. The camera keeps the number for you, on your phone with nothing tracked. You just jump.

  • JumpsThe camera watches you, not the rope. Each takeoff and landing is one jump.
  • TimeStarts when the countdown ends, stops when you tap End.
  • CatchesTrip on the rope and it notes a catch. The count keeps going.
The app's live view: a count of 86 jumps in green over the camera picture of a person jumping rope in a park, a timer reading 3:04, and a pill showing 0 catches
The live view, from the App Store listing: real interface, stand-in footage.

Jump in. Jump out. Done.

  1. Prop it up.

    Lean it against anything at chest height and step back.

  2. Wave to start.

    Raise a hand and hold it there, or tap Start. A short countdown, then it counts.

  3. Jump.

    Your music keeps playing. The count runs over the camera view.

  4. Tap End.

    Jumps, time, catches. Put the phone down.

The end screen card from the app: Nice work, 214 jumps, 6:12 duration, 2 catches, and a Jump again button
The end screen, from the App Store listing: real interface, stand-in footage.

Built to be closed, not opened.

A lot of fitness apps want you to stay longer: games, stats, streaks, a feed. Your attention is what they are after.

JustJump Rope is built for the opposite. Open it, jump, tap End, and go live your day. It does one job, then leaves you alone: no streaks to keep alive, no feed, no ads.

Privacy

Your video never leaves your phone.

Each camera frame is read on the device to find your jump, then discarded. Nothing is recorded, saved, or uploaded. No analytics, no ads, no tracking.

App Store privacy label: Data Not Collected

Read the privacy policy. It is short.

What people say

I love that there is nothing but the actual tool itself. No app UI to figure out, no games, it's just jump in and jump. I can even wave to get started and don't have to fiddle with buttons or worry about it starting before I am ready.

★★★★★ Shukamala · App Store review · August 2026

Used it? Leave a review.

7 days free, then $5.99 a month or $39.99 a year.

The app is free to download. After the trial it renews until you cancel, and you can cancel anytime in your Apple account. Nothing else is for sale in the app.

  • Monthly $5.99 a month
  • Best value Yearly $39.99 a year About seven months for the price of twelve.

One subscription, one job: counting.

Download on the App Store

iPhone and iPad, iOS 16.4 or later.

The short version.

Do I need a special rope or a wearable?

No. Any rope works, and there is nothing to wear or pair.

How does it count?

The camera watches you, not the rope. Each takeoff and landing is one jump. Trip on the rope and it notes a catch; your count keeps going.

Does it work offline?

Yes. Counting runs entirely on your device, with no connection needed. The app only talks to Apple, and only about your subscription.

Do I need an account?

No. There is no account and no sign-in. You open the app and it works. Your subscription is attached to your Apple Account, so it follows you to a new phone or a reinstall.

Is my video ever stored or uploaded?

Never. Frames are read on your phone and discarded. Nothing is recorded, and there is no server of ours to send it to.

What does it cost?

Free to download, then 7 days free, then $5.99 a month or $39.99 a year. It renews until you cancel, and you can cancel anytime in your Apple account.

Does it count without a rope?

Yes. It counts your landings rather than the rope passing, so it works without a rope. It is built and tuned for jump rope, so that is where it is most reliable, and a long ropeless set can end early.

Download on the App Store