39
BU Score
Emerging
OKN Viewer: Nystagmus
✍️ bumetric analysis
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OKN Viewer: Nystagmus is an iOS app from ishida yuto in the Education category, currently rated 3.7★ across 3 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Our BU Score puts it at 39: Emerging (early traction worth watching). For a Education app, that means early traction worth watching.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($1.99)METRIC | +$2,800 | |
| Pre-traction phase (3 ratings)METRIC | −$300 | |
| Growing app (1y old)METRIC | +$200 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
App Specs
🔐 Own this app? Claim & verify MRR →💾 603 KB🔞 4+📱 iOS 16.0+🔖 v1.4🔄 updated 2mo ago🌐 EN, JA📂 Education💰 Paid🚀 Launched 2024 (1y old)
📝 About this app
Even in healthy people, nystagmus naturally occurs when watching moving scenery.
This app reproduces that nystagmus on your smartphone screen and lets you record your eye movements with the front-facing camera — a simple tool to observe and experience nystagmus.
By staring at the moving stripe pattern (bands) on the screen, you can easily observe optokinetic nystagmus (OKN).
It can be used as a preview/review tool in medical, rehabilitation, and educational settings, and also answers the simple question:
“What does nystagmus actually look like?”
【Main Features】
• Adjustable stripe width… View full description on the official store →
This app reproduces that nystagmus on your smartphone screen and lets you record your eye movements with the front-facing camera — a simple tool to observe and experience nystagmus.
By staring at the moving stripe pattern (bands) on the screen, you can easily observe optokinetic nystagmus (OKN).
It can be used as a preview/review tool in medical, rehabilitation, and educational settings, and also answers the simple question:
“What does nystagmus actually look like?”
【Main Features】
• Adjustable stripe width… View full description on the official store →
🆕 What's New · v1.4
Minor corrections have been made.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- OKN Viewer: Nystagmus
- Developer
- ishida yuto
- Bundle ID
- com.ishida.isihda.nystagmusTest
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- EN, JA
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $86/mo
- Top-grossing rank
- Outside top 100 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth3 ratingsShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (21 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
Full revenue analysis
Read the article-style breakdown for OKN Viewer: Nystagmus: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.