54
Quality Score
Solid
Kay iSight Test Professional
✍️ bumetric analysis
“
Kay iSight Test Professional is an iOS app from Kay Pictures Ltd in the Education category, currently rated 4.4★ across 10 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 54: Solid (established niche player). For a Education app, that means established niche player. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Revenue · today and ahead
Today
$500/mo
In 12 months
$437 – $1575
In 24 months
$405 – $3644
INDIE tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$115K
↳ What it cost to build · not monthly revenue
Likely range $85K – $155K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~1.1y at current MRR
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱MVP baseline (design + 1-store ship) | +$28K |
| 📱5 unique screens × $4.5K | +$22K |
| ⚙Education complexity ×1.20 | +$10K |
| ⚙9.5y maintenance × ~1-person team | +$56K |
Total estimate$115K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 19× MRR multiple
💸~1.5× build cost (break-even+)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺Ad-supported base | 15× MRR |
| 📅9.5y proven track record | +20% |
| ⭐★ rating ≥ 4.4 (solid) | +8% |
| 🏷Education category multiple | +6% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple19× MRR
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 📦App bundle size | 22 MB |
| 🏷Category context | Education |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
At risk
40%
Last shipped 2026-02-02 · 110 days ago
0 · Active50 · At risk100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅3 months since last update | Slowing cadence |
| 👥Small user base (10 ratings) + 9.5y old | +10% (solo-project pattern) |
VerdictAt risk
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$500/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$426 – $993
12 months
$437 – $1.6K
24 months
$405 – $3.6K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 42/100INDIE TIERexpected for tierRevenue Strength
2.7
Product Quality
3.5
Market Position
2.0
Growth Velocity
5.0
Defensibility
4.4
Operational Safety
10.0
Founder Strength
4.9
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.4★ across 10 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $9K-$16K. Portfolio play ($8K/mo combined) commands premium.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| excellent appREVIEW | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Good rating (4.4★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (10 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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 22 MB🔞 17+📱 iOS 18.6+🔖 v7.1🔄 updated 3mo ago🌐 EN📂 Education💰 Paid🚀 Launched 2016 (9y old)
📝 About this app
The iSight Test Professional app lets you measure and save near and distant visual acuity in children as young as 18 months through to adults using Kay Picture optotypes and Sloan letters.
The app offers a choice of single and crowded presentations and test distances and is simple and intuitive to use, making your testing quick and easy. Test results are displayed in your chosen format and can be saved and exported to a spreadsheet
On the iPad is an option to test vision on any remote device or external screen.… View full description on the official store →
The app offers a choice of single and crowded presentations and test distances and is simple and intuitive to use, making your testing quick and easy. Test results are displayed in your chosen format and can be saved and exported to a spreadsheet
On the iPad is an option to test vision on any remote device or external screen.… View full description on the official store →
🆕 What's New · v7.1
Small bug fix.
📅
What Worked™ · Development Pipeline
6 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
🔄
Monetization changed: freemium → free
2026-03
⭐
Rating ↑ 3.67 → 4.50 (improved 0.83★)
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2022-08
⭐
Rating ↑ 3.00 → 3.67 (improved 0.67★)
2020-04
⭐
Rating ↑ 1.00 → 3.00 (improved 2.00★)
2020-03
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.4★ | 10 | 4.4★ this version |
| 🇬🇧 GB | 4.49383★ | 81 | 4.49383★ this version |
| 🇩🇪 DE | 0★ | 0 | — |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇨🇦 CA | 4.59999★ | 10 | 4.59999★ this version |
| 🇦🇺 AU | 4.5★ | 10 | 4.5★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Kay iSight Test Professional
- Developer
- Kay Pictures Ltd
- Bundle ID
- uk.co.kaypictures.iSightProfessional
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 17+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Vision testing made easy
- Description
- Developed by an orthoptist, our researched and validated Kay Picture Test and child-appropriate tools make vision testing quick and easy.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $8.7K/mo
- Top-grossing rank
- Outside top 100 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
- Socials
- linkedin linkedin.com/company/kay-pictures
- Not found
- Phone
- +441442823507
- Contact page
- kaypictures.co.uk/contact-us
- About page
- kaypictures.co.uk/about-us
📈Ratings growth10 ratings+900% lifetimeShow 3-year history estimate ▾
Tracked (5 weeks) Pre-tracking estimate (36 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 Kay iSight Test Professional: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Kay iSight Test Professional make per month?▾
Based on our ML-calibrated revenue forecast, Kay iSight Test Professional earns approximately $8K/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
Is Kay iSight Test Professional profitable?▾
With estimated build cost $115K and monthly revenue $8K, Kay iSight Test Professional looks break-even-grade — payback period sits around 1.1 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like Kay iSight Test Professional?▾
Browse the full Education category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
What is Kay iSight Test Professional built with?▾
Our heuristic places Kay iSight Test Professional on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is Kay iSight Test Professional still actively maintained?▾
Maintenance status: At risk (40% abandonment risk). Last shipped version was 3 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Kay iSight Test Professional sell for?▾
Estimated acquisition value: $175K (marketplace range $125K – $225K). Calculated as 19× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Kay iSight Test Professional last updated?▾
Kay iSight Test Professional last shipped a new version on 2026-02-02 — 3 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Kay iSight Test Professional?▾
Kay iSight Test Professional is published by Kay Pictures Ltd on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Kay iSight Test Professional's BU Score?▾
Kay iSight Test Professional has a BU Score of 54/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.