# Visual Vertical Lite vs K

The clearest difference is price: K at Free against Visual Vertical Lite's $5.99. K also leads on rating (3.7 vs 2.0) and update cadence (every 3 months vs every 42 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

K is free to download; Visual Vertical Lite costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

K holds the better App Store score, 3.7 against 2.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Visual Vertical Lite ships an update every 42 months, K every 3 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Visual Vertical Lite | K |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/visual-vertical-lite/id842449570/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/k-d-balance/id1389928582/reviews)** |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 6 MB | 147 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Clear Health Media](https://appshunter.io/developer/419017749) | [King-Devick Test, LLC](https://appshunter.io/developer/424793545) |

## What reviewers say

### Visual Vertical Lite

[App page](https://appshunter.io/ios/app/visual-vertical-lite/id842449570)

This medical app offers a quick, accurate, and affordable method for measuring subjective visual vertical in patients. It simplifies a previously complex and expensive diagnostic process, making it accessible for neurologists and vestibular rehabilitation specialists.

**Highlights:** Measures subjective visual vertical, Accurate and low-cost readings, Uses iPhone/iPad for testing, Suitable for neurology and vestibular rehab, Tests otolithic function, Single readings for each eye

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-d-balance/id1389928582)

This medical app helps healthcare professionals assess vestibular dysfunction by measuring balance stance metrics. It uses a device's accelerometer to objectively score balance after voice-guided exercises. Professionals can track patient progress over time.

**Highlights:** Vestibular dysfunction assessment, Measures balance stance metrics, Uses device accelerometer, Objective balance scoring, Longitudinal patient assessment, Voice-guided exercises

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

**In-app purchases:** none


## Frequently asked questions

### Is Visual Vertical Lite free?

Visual Vertical Lite costs $5.99, with no in-app purchases.

### Is K free?

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

### Which has better reviews, Visual Vertical Lite or K?

K is rated higher. Visual Vertical Lite averages 2.0 out of 5 from 1 ratings, while K averages 3.7 from 3 ratings.

### Do Visual Vertical Lite or K have ads?

Neither Visual Vertical Lite nor K shows ads.

### Which is updated more often, Visual Vertical Lite or K?

Visual Vertical Lite ships an update every 42 months, and K every 3 months. Most recently, Visual Vertical Lite was updated on September 24, 2026 and K on September 8, 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.*