27
BU Score
Niche
HemiStim
✍️ bumetric analysis
“
HemiStim is an iOS app from Linsay Associates, LLC in the Education category, currently rated 2.4★ across 5 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Our BU Score puts it at 27: Niche (micro-niche or pre-traction stage). For a Education app, that means micro-niche or pre-traction stage.
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 | |
| Below-average rating (2.4★)METRIC | −$1,500 | |
| Mature app (14y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (5 ratings)METRIC | −$300 |
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 →💾 1 MB🔞 4+📱 iOS 12.0+🔖 v1.4.4🔄 updated 2y ago🌐 EN📂 Education💰 Paid🚀 Launched 2012 (14y old)
📝 About this app
Hemistim can be used as a visual stimulation of areas of the frontal, parietal, occipital, and temporal lobes hemispherically. It is a specific brain stimulation which is rarely used in conjunction with other treatments but can be used as a portion of a home-based program or an office-based program. Such usage may lead to improved hemispheric connectivity specific, targeted areas of the brain and its connections to the parietal/temporal or frontal cortices.
Hemistim provides a visual stimulation through utilizing color patterns and eye tracking that can be used for specific left or right visual exercise. The stimulus is recognized and interpreted by the contralateral (opposite) occipital lobe. Pursuit and saccadic eye movements are created by targeting on the moving object. Pursuit away from and saccade towards the alternating squares are initiated by the ipsilateral (same side) parietal and frontal cortex, respectively. This gives the doctor the ability to work the frontal, parietal, occipital, and temporal lobes hemispherically.
HemStim is easy to use.
Swipe left or right to select a different colored pattern. Multiple patterns are available.
Tap a pattern to make it begin blinking. The pattern will blink until the timer stops it.
Double tapping the pattern will also make it stop.
The blink rate and timer can be changed using the sliders.
Target motion is controlled by the tapping the small target to the right of the speed control. Choose among no motion, saccade, and pursuit by successive taps on the small target. Exterior motion is indicated by purple arrows on the target and interior motion by white arrows.
The new Saccades screen only displays target motion.
Drag the purple target with one finger to set the direction and length of its motion.
Tap the screen once simultaneously with two fingers to switch between saccades, a dashed line, and pursuits, a solid line.
Tap the screen once with one finger to start the saccades or pursuits.
Double tap the screen with one finger to stop the target motion.
HemiStim automatically tracks therapy sessions, recording all pertinent information about each one. Maintain close communication between clinician and patient via email.
Hemistim provides a visual stimulation through utilizing color patterns and eye tracking that can be used for specific left or right visual exercise. The stimulus is recognized and interpreted by the contralateral (opposite) occipital lobe. Pursuit and saccadic eye movements are created by targeting on the moving object. Pursuit away from and saccade towards the alternating squares are initiated by the ipsilateral (same side) parietal and frontal cortex, respectively. This gives the doctor the ability to work the frontal, parietal, occipital, and temporal lobes hemispherically.
HemStim is easy to use.
Swipe left or right to select a different colored pattern. Multiple patterns are available.
Tap a pattern to make it begin blinking. The pattern will blink until the timer stops it.
Double tapping the pattern will also make it stop.
The blink rate and timer can be changed using the sliders.
Target motion is controlled by the tapping the small target to the right of the speed control. Choose among no motion, saccade, and pursuit by successive taps on the small target. Exterior motion is indicated by purple arrows on the target and interior motion by white arrows.
The new Saccades screen only displays target motion.
Drag the purple target with one finger to set the direction and length of its motion.
Tap the screen once simultaneously with two fingers to switch between saccades, a dashed line, and pursuits, a solid line.
Tap the screen once with one finger to start the saccades or pursuits.
Double tap the screen with one finger to stop the target motion.
HemiStim automatically tracks therapy sessions, recording all pertinent information about each one. Maintain close communication between clinician and patient via email.
🆕 What's New · v1.4.4
HemiStim has been updated to work with iOS 17
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- HemiStim
- Developer
- Linsay Associates, LLC
- Bundle ID
- com.LinsayAssociates.HemiStim
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- 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
- $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
- https://apps.apple.com/us/iphone/story/id1860412460
⭐Recent App Store Reviews3 latest · avg 2.33★ · 33.3% 5★ · 66.7% 1★
5★1 (33%)
4★0 (0%)
3★0 (0%)
2★0 (0%)
1★2 (67%)
+0 ratings/week
Praise: great ×1 fantastic ×1
Top positive
★☆☆☆☆ Stop working.
Great app, but it stop working all the sudden and I don’t know who to contact to fix it.…
★☆☆☆☆ Stopped working in iOS12
I was using this app for therapy. It was working very well and I really enjoyed using it to help me with the vestibular issue I have. When my iPad updated with iOS 12 it stopped working completely. I can’t find any way to contact the compan…
Top negative
★☆☆☆☆ Stop working.
Great app, but it stop working all the sudden and I don’t know who to contact to fix it.…
★☆☆☆☆ Stopped working in iOS12
I was using this app for therapy. It was working very well and I really enjoyed using it to help me with the vestibular issue I have. When my iPad updated with iOS 12 it stopped working completely. I can’t find any way to contact the compan…
📈Ratings growth5 ratings+400% lifetimeShow 3-year history estimate ▾
Tracked (4 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.
More by Linsay Associates, LLC
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Full revenue analysis
Read the article-style breakdown for HemiStim: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.