Muscle View vs OpenCap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Muscle View
Visualize muscle activation levels in real-time using wearable EMG sensors. Track and export session data with audio and haptic biofeedback. Connect up to six devices simultaneously for comprehensive analysis.
- Real-time EMG readings
- Bar and chart visualization
- Session data logging
- Audio and haptic biofeedback
- Supports up to 6 devices
- Bluetooth connectivity
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Display EMG reading (muscle activation level) from M40 Muscle Sense wearable EMG muscle sensors by ANR Corp. Uses Bluetooth for device connections. Displays realtime values, bars and charts. Datalog entire sessions for viewing and export. Audio and haptic biofeedback. Supports up to 6 devices simultaneously.
OpenCap
Capture 3D human movement using your iOS device's videos. This system includes an app for recording, a web interface for data management, and cloud processing for biomechanical analysis.
- 3D human movement measurement
- Video capture via iOS app
- Web app for data collection
- Cloud-based biomechanical analysis
- Data visualization
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OpenCap is a software system to measure 3D human movement from iOS device videos. It comprises an iOS app for video capture, a web app for data collection and visualization, and scalable cloud computing for biomechanical analysis from video.
Screenshots
Verdict
Muscle View and OpenCap are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Muscle View against 5.0 for OpenCap. Both are backed by a comparable volume of ratings — 3 and 7 respectively.
Muscle View ships an update every 3 months, OpenCap every 4 months. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.
| Parameter | Muscle View | OpenCap |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (7 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 | 7 — better |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 10 MB |
| Age rating | 9+ | 4+ |
| Developer | Applied Neural Research Corp | Model Health, Inc. |
Customer experience
Muscle View
OpenCap
In-app purchases
Muscle View
No in-app purchases
OpenCap
No in-app purchases
