# OpenCap vs DidYouMoveToday?

The clearest difference is in-app purchases: OpenCap at none against DidYouMoveToday?'s 1. OpenCap also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). DidYouMoveToday?'s advantage is update cadence (every 2 days vs every 4 months). On price and ads there is nothing between them.

Both are free to download. DidYouMoveToday? sells 1 one-off in-app purchase. OpenCap asks for nothing beyond the download.

OpenCap ships an update every 4 months, DidYouMoveToday? every 2 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | OpenCap | DidYouMoveToday? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/opencap/id1630513242/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 6 MB | 6 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Model Health, Inc.](https://appshunter.io/developer/1252127888) | [Eduardo Gomez](https://appshunter.io/developer/1880575614) |

## 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


### DidYouMoveToday?

[App page](https://appshunter.io/ios/app/didyoumovetoday/id6759769291)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | one-time |


## Frequently asked questions

### Is OpenCap free?

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

### Is DidYouMoveToday? free?

DidYouMoveToday? is free to download, with in-app purchases available.

### Do OpenCap or DidYouMoveToday? have ads?

Neither OpenCap nor DidYouMoveToday? shows ads.

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

OpenCap ships an update every 4 months, and DidYouMoveToday? every 2 days. Most recently, OpenCap was updated on October 15, 2026 and DidYouMoveToday? on October 15, 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.*