# OKNDrum: Optokinetic Drum — OptoDrum & Strips Eye Test

> Digital optokinetic drum for medical disorder evaluation. (iPhone/iPad app by Angel Vazquez.)

- Source: https://appshunter.io/ios/app/okndrum-optokinetic-drum/id1438597800 (this page in markdown: same URL + `.md`)
- Developer: [Angel Vazquez](https://appshunter.io/developer/1133273955)
- Category: Medical
- Price: $3.99
- Rating: 4.70/5 from 142 App Store ratings · 6 written reviews indexed
- Age rating: 12+
- Requires: iOS 12.0 · 8 MB
- Languages: American English
- Released: 2018-10-26
- Data updated: 2026-08-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/okndrum-optokinetic-drum/id1438597800/reviews.md

## What is OKNDrum?

Replace your bulky optokinetic drum with OKNDrum.

OKNDrum is the easy-to-use alternative to a physical optokinetic drum. Our app is used to evaluate neurological, otological, and ophthalmological disorders. 

To use OKNDrum simply place the iPhone or iPad in front of the eyes to elicit the response. The stripe color, width, speed, and direction can be adjusted easily. 

OKNDrum features:
- 7 Scrolling Speeds
- Red or Black Stripe Colors
- Adjustable Scroll Direction
- Adjustable Stripe Size
- Easy-to-hide Menu
- Easy-to-follow Instructions

Feel free to contact us with any questions or feedback.


*** OKNDrum was developed with the help of medical professionals and with the help of research papers. 

*** OKNDrum IS NOT a substitute for medical support. Consult your doctor for any advice.

## Key features

- Digital optokinetic drum replacement
- Evaluates neurological, otological, ophthalmological disorders
- Adjustable stripe color, width, speed, direction
- 7 scrolling speeds
- Red or black stripe colors
- Easy-to-hide menu

## Chart rankings

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

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/okndrum-optokinetic-drum/id1438597800/reviews.md

### 1/5 — Is not great

*2024-01-02*

The lines only go up and down. So if your PT or DR is recommending left and right this is not the app for you and a waste of money.

### 3/5 — No timer

*2023-08-28*

It’s great but there is no timer of any kind in view

### 4/5 — Nice

*2023-01-25*

Can you add center dot and Amsler grid. Other similar apps are providing both. Kindly look it into it…

**Developer response:** Will look into it. Thank you very much!

### 1/5 — Horizontal Rotation

*2019-04-09*

I was looking for an Opto Drum that moves horizontally, could there be a fix to have this occur, or a refund if not?
Thanks
Brain-bug

**Developer response:** Hi! Thanks for writing your concerns. You can achieve this if you lock your screen rotation and rotate your phone horizontally. The lines should move horizontally then. Will as this as a feature though. Have a good day.

### 5/5 — Wonderful app!

*2019-01-20*

Simple but extremely helpful app. Had a question and the developer replied within minutes. If you want to make the lines go left to right, just lock the screen orientation of your iPad or phone. My doctor wants me to use this for 15 seconds up/down and left/right 3x a day. This app makes it easy to incorporate it into my daily routine. Thank you!

### 5/5 — Great help!

*2018-10-26*

App is very useful and easy to use.

## Frequently asked questions about OKNDrum

### What is OKNDrum used for?

OKNDrum is used to evaluate neurological, otological, and ophthalmological disorders by providing a digital optokinetic drum. It helps elicit responses for diagnostic purposes.

### How much does OKNDrum cost?

OKNDrum is a paid app priced at $3.99. This is a one-time purchase and there are no in-app purchases or ads.

### What devices does OKNDrum support?

OKNDrum is compatible with iPhone, iPad, and iPod devices. It is designed to be used on Apple's mobile platforms.

### Can OKNDrum be used offline?

The provided information does not specify offline functionality. However, as a diagnostic tool, it is likely designed to function without an internet connection once installed.

### How often is OKNDrum updated?

OKNDrum was last updated on December 12, 2018, with version 1.6. The update frequency is not high, with the last update being over a year ago.

### What is the age rating for OKNDrum?

OKNDrum has an age rating of 12+. This indicates it is suitable for users aged 12 and older.

### Is OKNDrum a substitute for professional medical advice?

No, OKNDrum explicitly states it is NOT a substitute for medical support. Users should always consult their doctor for any medical advice or diagnosis.

### What are the customization options for the stripes in OKNDrum?

Users can adjust the stripe color to red or black, the stripe size, and the scroll direction. There are also 7 different scrolling speeds available.

## Version history (last 3 releases)

### 1.6 — 2018-12-12

Thank you for downloading OKNDrum. In this update:
- Fixed Bugs
- Performance Improvements

### 1.4 — 2018-11-03

Thanks for downloading OKNDrum and letting us build the most up to date medical tools in the App Store. 

This update includes:
- Performance improvements.

Please contact us if you have any questions, comments or suggestions.

### 1.0 — 2018-10-25

No release notes.

## Apps similar to OKNDrum

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [HemiStim](https://appshunter.io/ios/app/hemistim/id521313664) | 2.4 (5) | $9.99 | Medical |
| [Austin Assessment Family](https://appshunter.io/ios/app/austin-assessment-family/id6449723668) | — | Free | Medical |
| [Reflex - PLR Analyzer](https://appshunter.io/ios/app/reflex-plr-analyzer/id1412154869) | 3.5 (23) | Free | Medical |
| [optaro](https://appshunter.io/ios/app/optaro/id6572303552) | — | Free | Medical |
| [OKN Drum: Optokinetic](https://appshunter.io/ios/app/okn-drum-optokinetic/id6474153180) | 4.0 (14) | Free | Medical |
| [Austin Assessment Work](https://appshunter.io/ios/app/austin-assessment-work/id6449723694) | — | Free | Medical |

## More apps by Angel Vazquez

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- [Hello VIP](https://appshunter.io/ios/app/hello-vip/id6450114882)
- [Paseos](https://appshunter.io/ios/app/paseos/id6468602938)

All apps by Angel Vazquez: https://appshunter.io/developer/1133273955

## Related topics

[optokinetic drum](https://appshunter.io/ios/topics/optokinetic-drum) · [optokinetic](https://appshunter.io/ios/topics/optokinetic)

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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 2026-08-22.*