# Visual Vertical

> Measure SVV quickly & easily

Canonical page: [https://chrome-stats.com/d/id419017746](https://chrome-stats.com/d/id419017746)

## Overview

- **ID:** `id419017746`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Clear Health Media
- **Category:** Medical
- **Rating:** 2.00 / 5 (5 ratings)
- **Version:** 3.1
- **Last updated:** 2026-07-04
- **First published:** 2011-02-13
- **Size:** 9.67 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/visual-vertical/id419017746)
- **Website:** [https://clearhealthmedia.com/apps/visual-vertical/](https://clearhealthmedia.com/apps/visual-vertical/)
- **Privacy policy:** [https://clearhealthmedia.com/apps/visual-vertical-privacy/](https://clearhealthmedia.com/apps/visual-vertical-privacy/)

## Description

Visual Vertical makes high-grade subjective visual vertical (SVV) testing accessible to every practitioner — no expensive equipment required.

SVV testing is a sensitive, validated measure for brainstem lesions and otolithic dysfunction, widely used in neurology and vestibular rehabilitation. Until now, accurate testing required bulky, costly apparatus. Visual Vertical changes that: all you need is your iPhone, a bucket, and a small piece of Blu Tack.

How it works
Mount your iPhone inside the bottom of a bucket using Blu Tack. The patient holds the bucket to their face and adjusts a line on screen until it appears vertical to them. The app records the deviation and calculates your result — accurate readings in minutes, at a fraction of the traditional cost.

What you can measure
- Left eye, right eye, or both eyes open
- Single readings or full sequences across all conditions
- One or three readings per condition, with automatic averaging

Clean, minimal results screens make it easy to record and communicate findings.

## Rankings

- #666,400 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id419017746)