OKNDrum: Optokinetic Drum
OKNDrum: Optokinetic Drum is #133 in Medical Paid in United States and charting in 6 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperAngel Vazquez
CategoryMedical
Price17.99 SAR
Released
Rating★ 4.3 (6)
Version1.6
Age rating12+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)10k+ worldwide
Rating
4.3 ★
6 ratings
Measured
Best rank now
#133
Medical PaidMeasured
OKNDrum: Optokinetic Drum on the App Store
App details
App ID
1438597800
Publisher
Angel Vazquez
Content rating
12+
OKNDrum: Optokinetic Drum downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | MedicalPaid | #133 |
| South Korea | MedicalPaid | #58 |
 Japan | MedicalPaid | #135 |
 Germany | MedicalPaid | #123 |
 Russia | MedicalPaid | #62 |
 Saudi Arabia | MedicalPaid | #73 |
Apps near OKNDrum: Optokinetic Drum on the chart
Medical Paid, around #133.
Ratings
App Store, worldwide.
Rating
4.3 ★
6 ratings
Measured
Ratings
6
Measured
About OKNDrum: Optokinetic Drum
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.
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.
Latest updates
1.6
Thank you for downloading OKNDrum. In this update:
- Fixed Bugs
- Performance Improvements
