# OptoDrum

> Digital optokinetic drum for medical nystagmus evaluation. (iPhone/iPad app by Linsay Associates, LLC.)

- Source: https://appshunter.io/ios/app/optodrum/id374981098 (this page in markdown: same URL + `.md`)
- Developer: [Linsay Associates, LLC](https://appshunter.io/developer/326305565)
- Category: Medical, Utilities
- Price: $4.99
- Rating: 2.30/5 from 18 App Store ratings · 23 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 2 MB
- Languages: American English
- Released: 2010-06-06
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/optodrum/id374981098/reviews.md

## What is OptoDrum?

OptoDrum is an easy to use replacement for a bulky optokinetic drum or a fraying cloth tape to elicit optokinetic nystagmus for evaluation of neurological, otological, and opthalmological disorders.   Simply place the iPhone with a moving pattern in front of a patient’s eye to elicit the response.  The stripe pattern, width, and speed are easily adjustable.

• OptoDrum provides five patterns:  black stripes, red stripes, mixed colors, symbols, and animals.

• Drag a finger up or down the screen to make the pattern move at the speed of your finger.

• Double tap the moving pattern to make it stop.

• Pinch or zoom the pattern with two fingers to narrow or widen the pattern.

• A left or right finger swipe switches a stopped pattern to the next one in rotation.

## Key features

- Digital replacement for optokinetic drums
- Adjustable stripe patterns, width, and speed
- Five pattern types: stripes, colors, symbols, animals
- Intuitive touch controls for speed and stopping
- Pinch-to-zoom for pattern width adjustment

## Chart rankings

- #12 in Top Paid · Medical (US App Store)

## Recent user reviews (10 of 23)

All indexed reviews: https://appshunter.io/ios/app/optodrum/id374981098/reviews.md

### 1/5 — Disappointed

*2025-02-19*

Only black and white screen. How to view others

### 3/5 — Ein paar Funktionen fehlen

*2025-01-04*

Dafür, dass es eine kostenpflichtige app ist, kann sie zu wenig. 

Timerfunktion wäre nice sowie reminder-Funktion (zB 3x täglich erinnern). Weitere Geschwindigkeiten wären auch vorteilhaft.

### 1/5 — Waste

*2023-08-06, version 1.4*

Doesn't work as described. Can't switch pages to use different frames. Can't double tap to stop, have to close out and reopen to use another frame. It does not go as fast or as slow as you swipe.

### 1/5 — cannot get pictures just bars

*2023-03-13*

this app does not show the photos of animals only the bars

### 3/5 — can get better

*2023-02-23*

black and white stripes good function, however stopping impossible. Changing of width ok, but changing of patterns into animals impossible.

### 1/5 — No

*2021-06-01, version 1.4*

This is a rip off. Double tapping does not stop the pattern, so you can not switch patterns or colors. Very unresponsive to all touch commands instructed, in general.

### 1/5 — Worthless

*2019-03-12, version 1.4*

This app does not work as described. I want a refund please!

### 1/5 — Stop doesn’t work

*2018-01-07, version 1.3.5*

Can’t stop the movement with double tap so once it’s going I can’t change between them.

### 4/5 — Does the job

*2016-09-08, version 1.3.5*

It's a little tricky but with enough pinching, tapping the top where the icon bar appears, and sliding down on the screen you can change settings. Direction is changed by catching the movement to a stop and dragging slowly in reverse. It works better with young pediatrics than traditional methods of kinetic assessment and therapy, so worth $5!

### 1/5 — Doesn't work as described

*2016-08-10, version 1.3.5*

My first use of the darned thing and it won't stop on double tap as directed. It will change directions but not stop. Five bucks for a crap app. How about .99? At least I won't feel ripped off for buying an app that doesn't work from the start. Not to mention that it's just rolling bars!  Haven't found color options yet, so that may not work either. Don't buy.

## Frequently asked questions about OptoDrum

### What is OptoDrum used for?

OptoDrum is used as a digital replacement for a traditional optokinetic drum to elicit optokinetic nystagmus. This response is crucial for evaluating neurological, otological, and ophthalmological disorders.

### What patterns does OptoDrum offer?

OptoDrum provides five distinct patterns: black stripes, red stripes, mixed colors, symbols, and animals, allowing for varied patient stimulation.

### How do I control the pattern speed in OptoDrum?

You can control the pattern speed by simply dragging your finger up or down the screen. The speed of the pattern will match the speed of your finger movement.

### How much does OptoDrum cost?

OptoDrum is a paid application, priced at $4.99. There are no in-app purchases or subscriptions required after the initial purchase.

### What devices is OptoDrum compatible with?

OptoDrum is designed for use on iPhones, iPads, and iPods. It is suitable for a range of Apple mobile devices.

### How often is OptoDrum updated?

The latest version of OptoDrum is 1.4, which was released on February 2, 2019. Updates are not frequent, with the last update being several years ago.

### What is the age rating for OptoDrum?

OptoDrum has an age rating of 4+, making it appropriate for use with patients of most ages. This rating indicates general suitability for younger users.

### Does OptoDrum have ads?

No, OptoDrum does not contain advertisements. As a paid application, it provides an uninterrupted user experience for medical professionals.

## Version history (last 5 releases)

### 1.4 — 2019-02-02

We added a new set of colored stripes.

### 1.3.5 — 2016-01-02

iOS9 compatibility bug fixes.

### 1.3.4 — 2015-06-18

Added a link to online Help.

### 1.3.3 — 2014-04-14

Added Help

New Icon

### 1.3.2 — 2012-05-25

Fixed a bug that could cause OptoDrum to freeze.

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## More apps by Linsay Associates, LLC

- [EMDR Therapy](https://appshunter.io/ios/app/emdr-therapy/id477504212)
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- [InnerEye](https://appshunter.io/ios/app/innereye/id985248472)

All apps by Linsay Associates, LLC: https://appshunter.io/developer/326305565

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*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 2026-08-29.*