# AvaSci vs Prowess

The clearest difference is in-app purchases: Prowess at none against AvaSci's 2. AvaSci's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. AvaSci sells 2 in-app purchases, starting at $0.99 per month. Prowess asks for nothing beyond the download.

AvaSci ships an update every 5 days, Prowess every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AvaSci | Prowess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/avasci/id6477493063/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 378 MB | 77 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Avasci LLC](https://appshunter.io/developer/1729465694) | [Shoesense Inc](https://appshunter.io/developer/1217814065) |

## What reviewers say

### AvaSci

[App page](https://appshunter.io/ios/app/avasci/id6477493063)

This app uses patented motion capture and AI to precisely measure joint function, revealing details imperceptible to the human eye. It offers an easy-to-use interface to revolutionize how human body movement is analyzed. The app is free to download and use.

**Highlights:** Motion capture technology, Artificial intelligence analysis, Detailed joint function measurement, Easy-to-use interface, Revolutionary movement analysis

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $99.99 | per year |


### Prowess

[App page](https://appshunter.io/ios/app/prowess-running-form/id6762428114)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AvaSci free?

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

### Is Prowess free?

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

### Do AvaSci or Prowess have ads?

Neither AvaSci nor Prowess shows ads.

### Which is updated more often, AvaSci or Prowess?

AvaSci ships an update every 5 days, and Prowess every 2 months. Most recently, AvaSci was updated on October 24, 2026 and Prowess on October 25, 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.*