LEGO® DUPLO® DOCTOR
59
Quality Score
Solid
✍️ Bumetric analysis
“
LEGO® DUPLO® DOCTOR is an iOS app from StoryToys Limited in the News category, currently rated 4.1★ across 3,613 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 59: Solid (established niche player). For a News 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.
💰 Monthly revenue · now vs forecast
● Right now
$9.8K
per month
→
12-mo forecast
$10.2K – $21.3K
per month
→
24-mo forecast
$12.6K – $37.8K
per month
MID 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
10 snapshots on record
Rating
4.1
Reviews
3,613 reviews
Forecast Revenue / mo
$9.8K
Snapshots tracked
10
since Jan 2025
🤖Also on Android
$315/mo · 26K ratings · 4.2★
View →
ONE-TIME · BUILD
💰 Estimated build cost
$110K
↳ What it cost to build · not monthly revenue
Likely range $80K – $150K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~11 months 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 |
| 📦 Asset bundle (241 MB) | +$40K |
| ⚙ News complexity ×1.20 | +$18K |
Total estimate
$110K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$150K
↳ What it would sell for · not monthly revenue
Marketplace range $100K – $175K · 14× MRR multiple
💸
~1.4× 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 |
| 🏷 News category multiple | -5% |
Final multiple
14× MRR
👥 Estimated audience size
430K
Lifetime downloads (US-equivalent)
Monthly active
64K
Daily active
29K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 News engagement | ~120 installs / rating |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$9.8K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$9.3K – $15.5K
12 months
$10.2K – $21.3K
24 months
$12.6K – $37.8K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 52/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
7.7
Product Quality
7.4
Revenue Strength
4.0
Monetization Maturity
1.0
Defensibility
5.6
Market Position
2.0
Operational Safety
9.0
- 💰 Revenue: Modest — $6K - $14K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.09★ across 3,548 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 338d ago — slow cadence.
- ⚠️ 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 = $176K-$314K. Portfolio play ($153K/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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($4.99)METRIC | +$2,800 | |
| Low install base (3,613 ratings)METRIC | +$1,500 | |
| Multilingual (24 languages)METRIC | +$1,500 | |
| Good rating (4.1★)METRIC | +$800 | |
| Growing app (2y 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.
🆕 What's New · v1.2.0
Now updated with bug fixes and improvements!
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- LEGO® DUPLO® DOCTOR
- Developer
- StoryToys Limited
- Bundle ID
- com.storytoys.lego.duplo.doctor.ios
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 4+
- Languages
- AR, CS, DA, NL, EN, FI, FR, DE, EL, HU, ID, IT, JA, KO, NB, PL, PT, RO, RU, ZH, ES, SV, TR, VI
Company
- Website
- storytoys.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- $1.5K ($500 – $2.5K)AI low
- AI annual estimate
- $18.0K/yr
- Model estimate / mo
- $9.8K/mo
- Top-grossing rank
- Outside top 100 in US News
- 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
Contacts & Socials data not yet collected for this app.
✨AI Revenue EstimateCONFIDENCE: LOW
The iOS app "LEGO® DUPLO® DOCTOR" by StoryToys Limited is estimated to generate between $500 and $2,500 in monthly revenue, with a central estimate of $1,500, leading to an annual estimate of $18,000. This estimate is based on the app's one-time purchase price of $4.99, its relatively low number of ratings (3.5K) compared to other StoryToys apps, and the overall revenue figures for StoryToys Limited and its higher-grossing titles.
Sources mentioned: Sensor Tower, App Store, Peekly
📈Ratings growth3,502 ratings+350100% lifetimeShow 3-year history estimate ▾
Tracked (10 weeks) Pre-tracking estimate (0 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.
💰Pricing History$0.00 → $4.99 (+0%)
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.
📝 About this app
Welcome to LEGO® DUPLO® DOCTOR - Where Little Healers can Make a Big Difference!
Dive into a delightful world of care and creativity with LEGO® DUPLO® DOCTOR, an interactive app designed to introduce young children to the joys of helping others through playful doctor themed activities. Inspired by the colorful and imaginative world of Lego Duplo, this app turns your child into a hero in a white coat, ready to make the world a better place, one smile at a time.… View full description on the official store →
Dive into a delightful world of care and creativity with LEGO® DUPLO® DOCTOR, an interactive app designed to introduce young children to the joys of helping others through playful doctor themed activities. Inspired by the colorful and imaginative world of Lego Duplo, this app turns your child into a hero in a white coat, ready to make the world a better place, one smile at a time.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 241 MB🔞 4+📱 iOS 13.0+🔖 v1.2.0🔄 updated 0d ago🌐 AR, CS, DA, NL, EN +19📂 News💰 Paid
📅
What Worked™ · Development Pipeline
8 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
💲
Went paid — introduced $4.99 price point
→ 30 days after: reviews +152 high confidence
2026-03
⭐
Rating ↑ 3.60 → 4.10 (improved 0.50★)
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2026-02
⭐
Rating ↑ 3.25 → 3.60 (improved 0.35★)
→ 30 days after: revenue +$286/mo · rating +0.50★ · reviews +2,763 high confidence
2025-11
⭐
Rating ↑ 2.67 → 3.25 (improved 0.58★)
2025-10
⭐
Rating ↓ 3.50 → 2.67 (dropped 0.83★)
→ 30 days after: rating +0.58★ high confidence
2025-09
⭐
Rating ↑ 2.00 → 3.50 (improved 1.50★)
→ 30 days after: rating −0.83★ medium · co-occurring
2025-01
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.02023★ | 346 | 4.02023★ this version |
| 🇧🇷 BR | 4.08537★ | 82 | 4.08537★ this version |
| 🇨🇦 CA | 4.08054★ | 149 | 4.08054★ this version |
| 🇩🇪 DE | 4.14388★ | 139 | 4.14388★ this version |
| 🇫🇷 FR | 4.36538★ | 52 | 4.36538★ this version |
| 🇬🇧 GB | 4.06698★ | 642 | 4.06698★ this version |
| 🇮🇳 IN | 3.875★ | 8 | 3.875★ this version |
| 🇯🇵 JP | 4.23684★ | 38 | 4.23684★ this version |
| 🇺🇸 US | 4.08262★ | 3,607 | 4.08262★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for LEGO® DUPLO® DOCTOR: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by StoryToys Limited
View all →📦 Portfolio summaryBIG studio
7apps·$4.3M/mocombined
✓ Diversified — top app contributes 19%; risk spread across portfolio
About this analysis
Why medium confidence: 3,613 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
7 answers · auto-generated from this app's public dataHow much does LEGO® DUPLO® DOCTOR make per month?▴
Based on our ML-calibrated revenue forecast, LEGO® DUPLO® DOCTOR earns approximately $9.8K/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 LEGO® DUPLO® DOCTOR profitable?▴
With estimated build cost $110K and monthly revenue $9.8K, LEGO® DUPLO® DOCTOR looks profitable — pays back its estimated build cost in roughly 11 months at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does LEGO® DUPLO® DOCTOR have?▴
Estimated audience: ~430K lifetime downloads, ~64K monthly active users, and ~29K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like LEGO® DUPLO® DOCTOR?▴
Browse the full News 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.
How much would LEGO® DUPLO® DOCTOR sell for?▴
Estimated acquisition value: $150K (marketplace range $100K – $175K). Calculated as 14× 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.
Who makes LEGO® DUPLO® DOCTOR?▴
LEGO® DUPLO® DOCTOR is published by StoryToys Limited 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 LEGO® DUPLO® DOCTOR's BU Score?▴
LEGO® DUPLO® DOCTOR has a BU Score of 59/100 (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.