OKN Drum: Optokinetic

My Call Bag LLC · Medical

4.1 16 ratings Free

Independent analytics for this App Store listing. AppTracker is not affiliated with My Call Bag LLC.

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 13, 2026
New version 3.9 → 4.0

Now with eye tracking! Graph eye movements. Bug fixes and iPhone Duo Compatibility

Sep 25, 2026
New version 3.8 → 3.9
Sep 19, 2026
Rating ★ 4.07 → 4.13
Sep 18, 2026
Rating ★ 4.13 → 4.07
Sep 17, 2026
Rating ★ 4.07 → 4.13
Sep 16, 2026
New version 3.7 → 3.8
Aug 26, 2026
Rating ★ 4 → 4.07

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront. A field is charted once it has changed more than once, and each line starts at the value it moved from.

Average rating history over the observed period. 4.00 4.05 4.10 4.15 Aug 23 Sep 5 Sep 18 Oct 2 Oct 15

Average rating · ★ 4.13 now · 4 changes on record

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

One-time purchases
Lifetime Access $4.99

Screenshots

Keywords this app targets

Search terms AppTracker associates with this app — estimates, not search volume. ❝ = in the app's title; a highlighted number is its current position for that term.

Similar apps

Competitors and close alternatives, as estimated by AppTracker.

About

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.

What's new · 4.0

Now with eye tracking! Graph eye movements. Bug fixes and iPhone Duo Compatibility

Details

ReleasedDec 2023
UpdatedJun 2026
Version4.0
Size13.3 MB
RequiresiOS 17.0 or later
Age rating4+
LanguagesChinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish
PriceFree
Categories MedicalHealth & Fitness
Bundle IDOKNDrum.OKN-Drum