# Verticality Test vs SVV

The clearest difference is update cadence: SVV at every 2 months against Verticality Test's every 4 months. Verticality Test's advantage is iOS requirement (11.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Verticality Test ships an update every 4 months, SVV every 2 months. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Verticality Test | SVV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/verticality-test/id1048555950/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 62 MB | 2 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Jorge Alberto Rey Martinez](https://appshunter.io/developer/647212281) | [Kuroda ENT Clinic](https://appshunter.io/developer/1369699677) |

## What reviewers say

### Verticality Test

[App page](https://appshunter.io/ios/app/verticality-test/id1048555950)

Assess verticality, horizontality, and depth perception using your iOS device. This app offers a novel methodology for performing these tests anywhere, under any lighting conditions. A tvOS version is available for classical testing on Apple TV.

**Highlights:** Verticality perception tests, Horizontality perception tests, Profundity perception tests, Novel testing methodology, iOS device mobility, tvOS version available

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Verticality Test free?

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

### Is SVV free?

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

### Do Verticality Test or SVV have ads?

Neither Verticality Test nor SVV shows ads.

### Which is updated more often, Verticality Test or SVV?

Verticality Test ships an update every 4 months, and SVV every 2 months. Most recently, Verticality Test was updated on September 14, 2026 and SVV on September 7, 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.*