SVV vs PsyCog Metric
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SVV
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.
- 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
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Subjective Visual Vertical (SVV) is a test that measures the difference between a person’s perceived vertical and the true vertical. It evaluates gravity perception mediated by the otolith organs, vestibular nerve, and central vestibular pathways, and helps detect asymmetry of vestibular function. Using an audio/video remote control or a variety of game controllers, including those for Nintendo Switch, PlayStation, and Xbox, the user adjusts a displayed line until it is perceived as perfectly vertical. After repeating this procedure 10 times, the application calculates the mean deviation from the true vertical and the standard deviation.
PsyCog Metric
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It contains over 79 different, psychiatric and cognitive tests , all under one umbrella with easy check boxes, and text result exportability
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SVV | PsyCog Metric |
|---|---|---|
| Price | Free — better | $24.99 |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 12 MB |
| Age rating | 4+ | 17+ |
| Developer | Kuroda ENT Clinic | Boby Varkey |
In-app purchases
SVV
No in-app purchases
PsyCog Metric
No in-app purchases
