# Visual Vertical Lite vs PotsiApp

The clearest difference is rating: PotsiApp at 3.0 against Visual Vertical Lite's 2.0. PotsiApp also leads on update cadence (every 20 months vs every 42 months) and price ($3.99 vs $5.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Visual Vertical Lite costs $5.99 and PotsiApp $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PotsiApp holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Visual Vertical Lite ships an update every 42 months, PotsiApp every 20 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Visual Vertical Lite | PotsiApp |
| --- | --- | --- |
| Price | $5.99 | **$3.99** |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/visual-vertical-lite/id842449570/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/potsiapp/id1451461437/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 20 months** |
| Monetization | Paid | Paid |
| Size | 6 MB | 1 MB |
| Requires iOS | 16.0 | **15.4** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Clear Health Media](https://appshunter.io/developer/419017749) | [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877) |

## 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


### PotsiApp

[App page](https://appshunter.io/ios/app/potsiapp/id1451461437)

This medical app assists orthopedic surgeons in evaluating spinal deformities by calculating the Posterior Trunk Symmetry Index (POTSI). It uses a non-invasive topographic method with simple back images to assess back symmetry, helping to identify potential scoliosis and monitor deformities objectively.

**Highlights:** Calculates Posterior Trunk Symmetry Index (POTSI), Evaluates back symmetry using topographic method, Non-invasive assessment of spinal deformity, Imports medical images from camera or photos, Marks anatomical points on patient's back, Saves planned images for review, Objective monitoring of spine deformities

**Features:** 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 PotsiApp free?

PotsiApp costs $3.99, with no in-app purchases.

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

PotsiApp is rated higher. Visual Vertical Lite averages 2.0 out of 5 from 1 ratings, while PotsiApp averages 3.0 from 1 ratings.

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

Neither Visual Vertical Lite nor PotsiApp shows ads.

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

Visual Vertical Lite ships an update every 42 months, and PotsiApp every 20 months. Most recently, Visual Vertical Lite was updated on October 10, 2026 and PotsiApp on October 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.*