# SVV vs PsyCog Metric

The clearest difference is price: SVV at Free against PsyCog Metric's $24.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SVV is free to download; PsyCog Metric costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | SVV | PsyCog Metric |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 2 MB | 12 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kuroda ENT Clinic](https://appshunter.io/developer/1369699677) | [Boby Varkey](https://appshunter.io/developer/6778938815) |

## What reviewers say

### SVV

[App page](https://appshunter.io/ios/app/svv/id1471979816)

This app measures your perception of verticality to assess gravity perception and vestibular function. It uses a simple line adjustment task to calculate deviations from the true vertical, aiding in the detection of vestibular asymmetry.

**Highlights:** Measures subjective visual vertical, Evaluates gravity perception, Detects vestibular asymmetry, Adjusts perceived vertical line, Calculates mean deviation and standard deviation, Supports remote and game controllers

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

**In-app purchases:** none


### PsyCog Metric

[App page](https://appshunter.io/ios/app/psycog-metric/id6791916470)

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

**In-app purchases:** none


## Frequently asked questions

### Is SVV free?

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

### Is PsyCog Metric free?

PsyCog Metric costs $24.99, with no in-app purchases.

### Do SVV or PsyCog Metric have ads?

Neither SVV nor PsyCog Metric shows ads.

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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.*