# OpenCap vs VisionMD

The clearest difference is update cadence: VisionMD at every 11 days against OpenCap's every 4 months. OpenCap's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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 OpenCap against 5.0 for VisionMD. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

OpenCap ships an update every 4 months, VisionMD every 11 days. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OpenCap | VisionMD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/opencap/id1630513242/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/visionmd/id6642713461/reviews) |
| Number of ratings | **5** | 4 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Monetization | Free | Free |
| Size | 6 MB | 410 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Model Health, Inc.](https://appshunter.io/developer/1252127888) | [UF Health](https://appshunter.io/developer/1157015405) |

## What reviewers say

### OpenCap

[App page](https://appshunter.io/ios/app/opencap/id1630513242)

Capture 3D human movement data using your iOS device's camera. Analyze biomechanics through a comprehensive system including an app, web platform, and cloud computing.

**Highlights:** 3D human movement capture, iOS video recording, Web-based data collection, Biomechanical analysis, Cloud computing integration

**Features:** Vision Pro support

**In-app purchases:** none


### VisionMD

[App page](https://appshunter.io/ios/app/visionmd/id6642713461)

This app facilitates data collection for research by recording hand and body movements at high frame rates. It utilizes Apple Vision technology to guide users through specific exercises during video capture.

**Highlights:** High frame rate video recording, Hand and body movement capture, Apple Vision guidance, Research data collection support, UF IRB protocol compliance

**In-app purchases:** none


## Frequently asked questions

### Is OpenCap free?

OpenCap is free to download, with no in-app purchases.

### Is VisionMD free?

VisionMD is free to download, with no in-app purchases.

### Which has better reviews, OpenCap or VisionMD?

OpenCap and VisionMD are both rated 5.0 out of 5 on the App Store, from 5 and 4 ratings respectively.

### Do OpenCap or VisionMD have ads?

Neither OpenCap nor VisionMD shows ads.

### Which is updated more often, OpenCap or VisionMD?

OpenCap ships an update every 4 months, and VisionMD every 11 days. Most recently, OpenCap was updated on September 30, 2026 and VisionMD on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*