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OKN Viewer: Nystagmus icon

OKN Viewer: Nystagmus

ishida yuto

Category: Medical
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Rankings updated

Price and ratings

Price
$1.99
Rating
3.7 out of 5
Ratings
3United States

Versions

Released
19 Sep 20242 years ago
Last update
11 days agoVersion 1.5
Requires
iOS 16.0 or later

Details

Size
670.7 kB
Languages
2
Website
—

Observe and record optokinetic nystagmus (OKN) on your iPhone or iPad. OKN Viewer is a simple educational app for displaying moving stripe stimuli and observing optokinetic nystagmus (OKN) and eye movements. Choose from four stimulus directions — up, down, left, and right. Adjust the speed, stripe width, and colors to suit your needs, and use the front-facing camera to record eye movements while viewing the OKN stimulus. Your latest recording can be reviewed immediately, while previous…

Countries2In 2 charts right now
Best rank now#29Germany Paid · Medical
Ratings, 7 days—Needs a week of rating history
Longest chart run1 dayGermany Paid · Medical

Competitors

Full chart

Top of Paid · Medical in Germany. OKN Viewer: Nystagmus is #29 there. Changes are over 7 days.

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Store listing

How the app presents itself on the App Store. Select a screenshot to open it full size.

OKN Viewer: Nystagmus screenshot 1 of 5OKN Viewer: Nystagmus screenshot 2 of 5OKN Viewer: Nystagmus screenshot 3 of 5OKN Viewer: Nystagmus screenshot 4 of 5OKN Viewer: Nystagmus screenshot 5 of 5

What's new

Version 1.5 · 27 Sep 2026 · 11 days ago

We've made OKN Viewer even easier to use. - Added support for moving stripes in four directions: up, down, left, and right - You can now quickly review your latest video after recording - Microphone access is no longer required for recording - Made additional usability improvements Thank you for using OKN Viewer.

Current rankings

Every chart this app is in right now, best position first.

OKN Viewer: Nystagmus chart positions
ChartRank24 h7 daysBestDays on chart
Germany· Paid · Medical#29Change unknownChange unknown#291
United States· Paid · Medical#94Change unknownChange unknown#941

Rank history

Higher on the chart is better: #1 is at the top.

Sign in to see 30 days, 90 days and all history.

Germany · Paid · Medical: best #29, latest #29, over 2 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct; the line joins the snapshots on either side.

Germany · Paid · Medical: best #29, latest #29, over 2 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct; the line joins the snapshots on either side.

Ranking events

Entries, big moves, #1s and new versions we've recorded.

  1. Entered the Paid · Medical chart at #29Germany
  2. Entered the Paid · Medical chart at #94United States