# Ballet Protractor – Leg Angle — Measure your leg angle live

> Measure your leg angle live (iPhone/iPad app by Jungmun Choi.)

- Source: https://appshunter.io/ios/app/ballet-protractor-leg-angle/id6782101611 (this page in markdown: same URL + `.md`)
- Developer: [Jungmun Choi](https://appshunter.io/developer/1877873773)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.5 · 60 MB
- Languages: American English, Korean
- Released: 2026-06-20
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/ballet-protractor-leg-angle/id6782101611/reviews.md

## What is Ballet Protractor?

Ballet Protractor is a ballet practice tool that measures your leg angles in real time with the camera. See exactly how many degrees your leg rises in a développé or split, and keep a record to track your progress over time. It also includes a Manual Protractor that measures any angle right on a photo — like your turnout.

■ Measures the angle between your legs
Recognizes side développés as well as front and back extensions.

■ Real-time measurement + skeleton overlay
Pose recognition draws your leg lines and the angle on screen in real time. Just step in front of the camera.

■ Record your practice on video
Your best angle is shown live, and you can save the video to your gallery or share it.

■ Measurement history and progress chart
Every session's best angle is saved automatically, with a thumbnail of that moment. Watch your angles grow at a glance on the chart.

■ Manual Protractor — any angle, on a photo
Take a photo or pick one from your gallery, drag the V-shaped protractor into place, and measure any angle from 0 to 360°. For angles on the floor — like turnout — turn on the top-down fix: even a tilted shot is automatically straightened to a true top-down view for an accurate reading. Save or share the photo with the angle on it.

■ Offline · Privacy
All measurement, video and photo processing, and record keeping happen only on your device. Recorded videos and photos leave the app only when you save or share them yourself. No sign-up required — measuring and recording work without internet.

■ Available in 5 languages
Korean, English, Japanese, Russian, and French, shown automatically in your device language.


## Version history (last 5 releases)

### 1.3.0 — 2026-07-09

• New "Share this app" in Settings — send the app link to your friends.

### 1.2.0 — 2026-07-05

• New Manual Protractor — take a photo or pick one from your gallery and measure any angle by hand. Turn on the top-down fix to auto-straighten tilted floor shots (great for turnout).
• Oversplits beyond 180° are now measured accurately.
• Recording quality upgraded to 1080p (auto-adjusted to your device).
• Stability improvements, including automatic recovery from camera errors.

### 1.1.0 — 2026-06-27

• Measurement history
Your best angle is saved automatically after every measurement, and you can track your progress on a graph.

### 1.0.11 — 2026-06-23

• Added iPad support.
• Fixed the front (selfie) camera preview appearing rotated on some devices.
• Stability and UI improvements.

### 1.0.8 — 2026-06-22

• More accurate, more stable angle detection when you raise your leg high.
• A "Straighten your knee" hint appears when your knee is bent.
• Added a Reset button on the measuring screen to instantly clear your best-angle record.

## More apps by Jungmun Choi

- [ilkda - Track & Share Reading](https://appshunter.io/ios/app/ilkda-track-and-share-reading/id6759287182)

All apps by Jungmun Choi: https://appshunter.io/developer/1877873773

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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 2026-07-18.*