# Duo Coach 健身教练 — Hands-free rep & plank counter

> Hands-free rep & plank counter (iPhone/iPad app by Jiang Yu.)

- Source: https://appshunter.io/ios/app/duo-coach/id6813362707 (this page in markdown: same URL + `.md`)
- Developer: [Jiang Yu](https://appshunter.io/developer/1064347816)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Released: 2026-10-12
- Data updated: 2026-10-29

## What is Duo Coach 健身教练?

Duo Coach turns the phone you already own into a hands-free workout partner. Prop it on the floor against a wall or a stand, step back, and it counts your reps from the camera. Analysis runs on the device. Foldable phones can simply fold themselves upright.

WHAT IT DOES
- Live rep counting for squat, push-up, lunge and jumping jack, plus a timed plank.
- Amplitude calibration: do one slow rep and it learns YOUR range, then counts to that instead of judging you against a textbook depth.
- Form cues on knee tracking and body line, with a light haptic tap on each counted rep.
- Rest countdown and a lock screen / Dynamic Island live activity, so the phone can lie face-down and you still see where you are.
- A short report after every session: what was counted, what drifted, one next step.
- Training plans: a weekly schedule built from your goal, days per week and equipment limits. Reps and rest per exercise stay editable, and you can write a course by hand.
- Movement library: 35 movements can go into a plan or be logged by hand — step jack (no jumping), chair squat, wall, incline and knee push-ups, bird dog, dead bug, side plank, dumbbell row, band pull-apart. Only squat, push-up, lunge, jumping jack and plank are counted or timed by the camera; the other 30 are manual.
- Cloud coach: describe your situation in words and it returns a session plus a training insight.
- Community: check in the day's training and see other people's progress and the challenge list; your own posts can be deleted any time.
- Meal log: calories and protein per meal, next to your weight trend.
- Outdoor runs: GPS route, distance and pace, with the option to write the run into the Health app and pull in earlier workouts.
- Movement alarms: pick the times and repeat days, and the completion rule — on-device camera verification or explicit manual confirmation. Alarm rules and their outcomes stay on this device.
- Weekly review: the week's sessions, minutes and scores on one page, with an optional AI read on top.
- First launch asks once whether your phone folds or is a regular slab, so the placement instructions describe something you can actually do. Change it any time in Settings.

PRIVACY
- Pose analysis happens on device. Video is not saved or uploaded by default.
- Training records stay on this device. Text you type and a training summary only leave it when you use the cloud coach or the community yourself.
- Community posts are shown inside the visibility range you pick, and both nickname and text can be edited or deleted.
- Health data and location each need your own consent in the system prompt; everything else keeps working if you decline.
- Voice commands (start, pause, resume) use speech recognition and can be switched off.
- Everything except sign-in, the cloud coach and the community works with no network.

NOT MEDICAL ADVICE
Duo Coach is a training aid, not a medical or diagnostic device. Stop immediately if you feel joint pain, dizziness, or lose your balance, and check with a professional first if you have an existing health condition.

The camera counts five movements, and it counts those five well. The other thirty are there for plans and manual logging.

The app interface is currently available in Simplified Chinese only.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Duo Coach Pro Monthly | $3.99 | per month |
| Duo Coach Pro Yearly | $24.99 | per year |


## Is Duo Coach 健身教练 safe?

Not enough ratings yet to assess Duo Coach 健身教练.

## Is Duo Coach 健身教练 legit?

Duo Coach 健身教练 appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Duo Coach 健身教练 is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.6 — 2026-10-27

No new training features in this update — the changes are to the App Store listing itself: the movement library has 35 movements you can schedule or log by hand, of which five (squat, push-up, lunge, jumping jack, plank) are counted or timed by the camera. We also documented the movement alarms and the weekly activity review that shipped in the last update.

### 1.5 — 2026-10-23

Movement alarms with custom times, repeat days and completion rules: choose on-device camera verification for supported exercises, or explicit manual confirmation. Emergency stop is available in the app, and alarm rules and their outcomes stay on this device. Also adds weekly activity reviews with optional AI insights, plus course editing and exercise substitution improvements. The system's own alarm controls keep working; this feature does not lock your phone or other apps. New features are free and subscription prices are unchanged.

### 1.4 — 2026-10-21

This update adds six things:
1. Training plans: a weekly schedule built from your goal, days per week and equipment limits. Reps and rest stay editable, and you can write a course by hand.
2. Cloud coach: describe your situation in words, get one session back plus a training insight.
3. Community: check in the day's training, see other people's progress and the challenge list. Your own posts can be deleted any time.
4. Meal log: calories and protein per meal, next to your weight trend.
5. Outdoor runs: GPS route, distance and pace, with an option to write the run into the Health app.
6. Bigger screens: on wide layouts the app splits into two columns and keeps controls away from the middle.
Free features and subscription prices are unchanged.

### 1.3 — 2026-10-19

This update makes features easier to reach: home now shows Training History and Settings instead of hiding them in a menu; onboarding lands on home; the history page shows the trend card with no records yet; the account page adds Support Us.

### 1.2 — 2026-10-17

Improvements in this release:
· The placement screen now has a way back to Today. If the camera is unavailable or its permission is denied, you can still complete a full round using manual counting.
· Today lists the five bodyweight moves and an estimated round duration before you start, and each move can be opened for a written how-to guide.
· During a workout you can open the how-to guide for the current move (the round pauses while it is shown), and the pause controls can skip the current move.
· The report you see when a round ends is the same one History shows later, including after you relaunch the app.
· Partial rounds are recorded as they happened. Ending a round without any valid activity no longer adds a day to your streak.

## More apps by Jiang Yu

- [语C圈-好玩有趣的语言Cosplay（角色扮演）文字演绎APP](https://appshunter.io/ios/app/c-cosplayapp/id1064347817)
- [ID Scanner: Redact PDF](https://appshunter.io/ios/app/id-scanner-redact-pdf/id6783196411)
- [Algorithm Heroes: Battle](https://appshunter.io/ios/app/algorithm-heroes-battle/id6784192453)
- [PhotoPrivacyGuard](https://appshunter.io/ios/app/photoprivacyguard/id6786634123)
- [AusGuard: Bushfire Alerts](https://appshunter.io/ios/app/ausguard-bushfire-alerts/id6788314965)
- [LumaCare Family Check-In](https://appshunter.io/ios/app/lumacare-family-check-in/id6789523620)

All apps by Jiang Yu: https://appshunter.io/developer/1064347816

## Related topics

[duo push](https://appshunter.io/ios/topics/duo-push)

---

*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 2026-10-29.*