OKN Drum: Optokinetic4.0 - App Store
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Publisher Description
IN-APP PURCHASE REQUIRED FOR USE
. OKN Drum Pro provides an Optokinetic Nystagmus (OKN) Drum featuring multiple modes for optokinetic testing and exercises. Users can adjust the stripe width to their preference using the pinch-to-zoom functionality.
. The speed of the OKN stripes is easily adjustable, enabling quick increases or decreases as desired.
. Users have the option to select either black or red stripes to suit their visual requirements.
. Includes multiple pediatric targets, such as puppies, dinosaurs, and various animal targets.
. By tapping the stripes, users can enter full-screen mode for an immersive experience.
. A metronome is also available to assist with timing exercises, enhancing the overall utility of the app for therapeutic and testing purposes.
. Graph eye movements with pupil tracking
. Record eye movements with the front facing camera
. Upload images for a custom OKN drum
. Flick the OKN graphic to simulate rotating an OKN drum
This app is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified healthcare provider before making any medical decisions. If you think you may have a medical emergency, call emergency services immediately.
Version History Now with eye tracking! Graph eye movements.
Bug fixes and iPhone Duo Compatibility 4.0 19h ago Bug fixes 3.9 Sep 24 Bug fixes 3.8 Sep 16 Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
About OKN Drum: Optokinetic
The company that develops OKN Drum: Optokinetic is My Call Bag LLC. The latest version released by its developer is 4.0.
To install OKN Drum: Optokinetic on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the OKN Drum: Optokinetic as malware if the download link is broken.
How to install OKN Drum: Optokinetic on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the OKN Drum: Optokinetic is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After OKN Drum: Optokinetic is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 4.0
posted on 2026-10-14
Version History Now with eye tracking! Graph eye movements.
Bug fixes and iPhone Duo Compatibility 4.0 19h ago Bug fixes 3.9 Sep 24 Bug fixes 3.8 Sep 16 Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.9
posted on 2026-10-07
Version History Bug fixes 3.9 Sep 24 Bug fixes 3.8 Sep 16 Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.9
posted on 2026-09-27
Version History Bug fixes 3.9 2d ago Bug fixes 3.8 Sep 16 Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.8
posted on 2026-09-20
Version History Bug fixes 3.8 3d ago Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.7
posted on 2026-09-13
Version History Bug fixes. 3.7 Jun 24 Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.7
posted on 2026-07-01
Version History Bug fixes. 3.7 6d ago Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.6
posted on 2026-06-14
Version History Bug fixes 3.6 May 7 Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.6
posted on 2026-05-11
Version History Bug fixes 3.6 3d ago Improved eye recording
Custom colors 3.5 May 1 Improved on-boarding 3.4 Apr 2 Improved onboarding 3.3 Apr 2 Bug fixes 3.2 Feb 8 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.1 12/08/2025 Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum 3.0 12/04/2025 Bug fixes 2.1 09/09/2024 Better pediatric targets! 2.0 02/18/2024 Gyroscope now keeps pediatric targets in the correct orientation! 1.8 02/16/2024 Pediatric targets added! Puppies, Dinosaurs, and Animals!
Improved iPad compatibility! 1.7 02/16/2024 Bug fixes 1.5 02/06/2024 Bug fixes 1.4 02/02/2024 Now orientation is locked in portrait mode for the IPhone and iPad. Just rotate the device to change direction of the stripes. 1.3 01/07/2024 Improved metronome functionality 1.2 01/04/2024 · Added a metronome to help time exercises
· Added an arrow that can be toggled on that points to the direction of the stripes
· Added a label for each speed mode to make more consistent exercises possible 1.1 12/19/2023 Improved animation 1.01 12/17/2023 1.0 12/12/2023
version 3.2
posted on 2026-02-08
Bug fixes
version 3.1
posted on 2025-12-08
Improved animation
Record with front facing camera
Upload custom graphics
Swipe to rotate drum
Disclaimer
Official App Store Link
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