# JumJac: Jumping Jacks Counter — user reviews

> 18 indexed App Store user reviews of JumJac by 晓东 林, rated 4.30/5 from 45 ratings.

- Source: https://appshunter.io/ios/app/jumjac-jumping-jacks-counter/id1619789265/reviews
- App overview in markdown: https://appshunter.io/ios/app/jumjac-jumping-jacks-counter/id1619789265.md
- Rating breakdown: 5★ 32 · 4★ 6 · 3★ 1 · 2★ 0 · 1★ 6

## Most critical reviews (10 lowest-rated)

### 1/5 — Pay money

*2026-04-27*

I only used the app for 2 mins and it says so have to pay, is it blocked forever till I pay it or do I have a timer for each day??

### 1/5 — 垃圾

*2025-12-16*

前几天刚充的一年的会员 今天显示又让我充？

### 1/5 — Duh?

*2025-12-16*

Nice but it would’ve been more helpful if the people were informed you have to pay $$ to access the technology in this, jumping jacks, format!! I have apps where it cost .99 to access additional technology but itmt the app is still functional and works. The access isn’t blocked bc of funding.

### 1/5 — JumJac joke

*2024-12-20*

Download the app for Apple Watch and when I open the app it tells me to upgrade to Pro to use the watch app.  Pretty much worthless at that point.  Should be zero stars

### 1/5 — 垃圾

*2023-09-06*

太垃圾了，浪费六块钱，计数一点都不准！

**Developer response:** Hello y哒哒
计数不准应是您未细读使用说明，您只需10秒钟的时间扫一眼App的“设置”-“教程”，教程中说需要手掌朝您的正前方，相信在按照说明的情况下，开合计的准确度是能否让您满意的。
Regards

### 1/5 — Count is way off

*2023-01-21*

With the sensitivity rate on max, I completed 50 jumping jacks and the counter says 16. 😡😡😡

**Developer response:** Hello King

I think you must have missed the instructions, make sure your palm is facing in front of you while jumping so the watch can count accurately. If you still have any questions about this, please feel free to email me at fitnexhelp@gmail.com 

Regards

### 2/5 — TWO STARS FOR TAKING MY MONEY AGAIN

*2023-12-11*

I paid for this app for the year and got a new phone and the restore purchase didn’t work. Had to pay for it again. 

Otherwise good ap. 

Will be contacting apple for a refund.

### 2/5 — 手表上闪退

*2022-05-10*

watch s7，打开app运动过程中，不定时会闪退。闪退之后数据能在健身app 中显示，但开合计app 里没有，望解决啊！

### 3/5 — 不准的

*2025-10-18*

跳着跳着就不计了，根本不准

### 3/5 — 500下目标，结果跳了640下，灵敏度已经调到最大20了

*2024-08-19*

500下目标，结果跳了640下，灵敏度已经调到最大20了，请尽快改进

## Most praised reviews (8 highest-rated)

### 5/5 — 不错的开合跳

*2024-11-12*

试用了一下，不错，计数挺准

### 5/5 — 超级好用！减肥好伙伴

*2024-07-18*

敏感度nice.再也不用自己数了！关键是售后客服没得说！希望这个app越来越好

### 5/5 — Great App

*2023-07-11*

Works great and is accurate, love this app! I highly recommend it.

BV

### 5/5 — 很准很实用

*2022-04-21*

准确率不错

### 4/5 — It was good until…

*2025-11-18*

Leaderboard stopped working. Other than that I use it every day

### 4/5 — Works well

*2023-06-27*

I did need to adjust the sensitivity up a bit and when your hands are in the proper position (palms forward, which was mostly natural for me personally) I found the count to be accurate most of the time. The timer feature is nice. The voice feedback can be a little quiet and the end of time tones sometimes don’t play when my watch has entered sleep/nighttime mode.

### 4/5 — 计数不准

*2022-05-22*

除了计数不准，别的没什么问题

### 3/5 — 数据不同步啊

*2024-06-21*

我前几天跳的 手机里的健身和健康app 包括手表都有数据 就是手机软件里没有那一天的记录

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*