# Vernier — Neo Controller Acuity Testing

> App for visual/tactile acuity testing and Neo Controller calibration. (iPhone/iPad app by Global Tactile, LLC.)

- Source: https://appshunter.io/ios/app/vernier/id6476447568 (this page in markdown: same URL + `.md`)
- Developer: [Global Tactile, LLC](https://appshunter.io/developer/1635396885)
- Category: Utilities, Navigation
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 14.0 · 1 MB
- Languages: English
- Released: 2024-01-23
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/vernier/id6476447568/reviews.md

## What is Vernier?

Made for testing visual and tactile Vernier acuity, the Vernier App can be used for displaying Vernier Lines with a Neo Controller. The Vernier App can also be used for Neo Controller calibration and testing.

## Key features

- Visual acuity testing
- Tactile acuity testing
- Vernier line display
- Neo Controller calibration
- Neo Controller testing


## Frequently asked questions about Vernier

### What is Vernier used for?

Vernier is used for testing visual and tactile acuity by displaying Vernier lines. It also facilitates Neo Controller calibration and testing.

### Is Vernier free to download?

Yes, Vernier is available for free on the App Store.

### What devices does Vernier support?

Vernier is compatible with iPhone and iPod devices.

### What is the age rating for Vernier?

Vernier has an age rating of 4+, making it suitable for a wide range of users.

### How often is Vernier updated?

The latest version, 1.2, was released on March 3, 2024. Updates are provided by the developer, Global Tactile, LLC.

### Does Vernier have ads?

No, Vernier does not contain advertisements.

### What is the user rating for Vernier?

Vernier has received a perfect rating of 5.0 stars from one user review.

### Can Vernier calibrate my Neo Controller?

Yes, Vernier can be used for Neo Controller calibration and testing.

## Version history (last 3 releases)

### 1.2 — 2024-03-03

New slider function for direct remote control of Neo Controller. This completes 3 of the 4 subject matters of the Quadrivium.

### 1.1 — 2024-02-01

Left, Center, and Right buttons for faster stimulus presentation. Step number also displayed for convenience.

### 1.0 — 2024-01-23

No release notes.

## Apps similar to Vernier

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RS-MS1I](https://appshunter.io/ios/app/rs-ms1i/id1193842632) | 1.9 (70) | Free | Utilities |
| [Sonic Wave: Speaker Test](https://appshunter.io/ios/app/sonic-wave-speaker-test/id6449284521) | 4.8 (25) | Free | Utilities |
| [City of Phoenix - myPHX311](https://appshunter.io/ios/app/city-of-phoenix-myphx311/id1548838395) | 1.0 (2) | Free | Utilities |
| [Blue Light Filter - Dark Mode](https://appshunter.io/ios/app/blue-light-filter-dark-mode/id6657988839) | 3.0 (2) | Free | Utilities |
| [Bezel • Phone Mirror](https://appshunter.io/ios/app/bezel-phone-mirror/id6476268685) | 2.8 (21) | Free | Utilities |
| [Lens: Image Search & Translate](https://appshunter.io/ios/app/lens-image-search-and-translate/id6743081148) | 4.6 (103) | Free | Utilities |

## More apps by Global Tactile, LLC

- [Luna Navigator](https://appshunter.io/ios/app/luna-navigator/id1635396883)
- [Neo Compass](https://appshunter.io/ios/app/neo-compass/id6476523914)

All apps by Global Tactile, LLC: https://appshunter.io/developer/1635396885

## Related topics

[driver pantalla tactil p19ph-ja](https://appshunter.io/ios/topics/driver-pantalla-tactil-p19ph-ja)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*