58
BU Score
Solid
OKNDrum: Optokinetic Drum
✍️ BU Analytics Review
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OKNDrum: Optokinetic Drum is an iOS app from Angel Vazquez in the Education category, currently rated 4.7★ across 141 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 58 — Solid (established niche player). For a Education app, that means established niche player.
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Established app (7y old)METRIC | +$800 | |
| Early-stage install base (141 ratings)METRIC | +$400 | |
| Single-language (English only)METRIC | −$400 |
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.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 8 MB🔞 12+📱 iOS 12.0+🔖 v1.6🔄 updated 7y ago🌐 EN📂 Education💰 Paid🚀 Launched 2018 (7y old)
📝 About this app
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.
🆕 What's New · v1.6
Thank you for downloading OKNDrum. In this update:
- Fixed Bugs
- Performance Improvements
- Fixed Bugs
- Performance Improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- OKNDrum: Optokinetic Drum
- Developer
- Angel Vazquez
- Bundle ID
- com.humbll.OptoApp
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 12+
- Languages
- EN
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
- $201/mo
- Top-grossing rank
- Outside top 99 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
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1895675718
📈Ratings growth141 ratings+14000% lifetimeShow 3-year history estimate ▾
Tracked (5 weeks) Pre-tracking estimate (37 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.
