# OKNDrum: Optokinetic Drum — user reviews

> 6 indexed App Store user reviews of OKNDrum by Angel Vazquez, rated 4.70/5 from 142 ratings.

- Source: https://appshunter.io/ios/app/okndrum-optokinetic-drum/id1438597800/reviews
- App overview in markdown: https://appshunter.io/ios/app/okndrum-optokinetic-drum/id1438597800.md
- Rating breakdown: 5★ 116 · 4★ 17 · 3★ 5 · 2★ 0 · 1★ 4

## Most critical reviews (6 lowest-rated)

### 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.

### 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.

### 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!

### 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.

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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.*