Lang Kingdom - Best At English
67
Quality Score
Solid
Lang Kingdom - Best At English
Medium confidence
✍️ bumetric analysis
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Lang Kingdom - Best At English is an Android app from Lang Kingdom Pte. Ltd. in the Education category, currently rated 4.8★ across 4,598 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 67: 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.
💰 Monthly revenue · now vs forecast
● Right now
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
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
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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
📈Slow ROI — current MRR is well below build cost
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 |
| 💎In-app purchase plumbing | +$9K |
| ⚙Education complexity ×1.20 | +$11K |
| 🌐Cross-platform reach (iOS + Android) | +$39K |
Total estimate$110K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$25K
↳ What it would sell for · not monthly revenue
Marketplace range $15K – $30K · 34× MRR multiple
💸~0.2× build cost (under-water)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎IAP / freemium model base | 28× MRR |
| ⭐★ rating ≥ 4.7 (premium) | +15% |
| 🏷Education category multiple | +6% |
Final multiple34× MRR
👥 Estimated audience size
390K
Lifetime downloads (US-equivalent)
Monthly active
70K
Daily active
21K
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
| 📲Education engagement | ~85 installs / rating |
| 🔁Education D30 retention | 18% |
| 📍DAU / MAU stickiness | 0.30 |
DAU / MAU30% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
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 · 53/100MID TIERunderperforming peersRevenue Strength
3.7
Product Quality
8.7
Market Position
0.0
Growth Velocity
5.0
Defensibility
6.5
Operational Safety
10.0
Founder Strength
3.8
Monetization Maturity
5.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.82★ across 4,598 reviews — strong (top 10%).
- 📍 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 = $90K-$160K.
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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Low install base (4,598 ratings)METRIC | +$1,500 | |
| Established app (7y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
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 →🔖 v6.0.5🔄 updated 0d ago📂 Education💰 Free📺 Ad-supported💎 IAP $0.99 - $274.99 per item
📝 About this app
Mục tiêu của bạn là khả năng giao tiếp tiếng Anh lưu loát ở mọi ngóc ngách trong cuộc sống hàng ngày và trong công việc. Lang Kingdom đã tìm ra được cách giúp bạn chinh phục tiếng Anh giao tiếp bằng phương pháp khoa học và độc nhất cùng với bộ công cụ tiên tiến giúp bạn luyện cực kỳ dễ dàng nhưng hiệu quả nhất
Lang Kingdom đã thiết kế lộ trình học với các mục tiêu rõ ràng cụ thể mà bạn khi bạn thực hiện xong là chắc chắn giỏi tiếng Anh giao tiếp. Lang Kingdom cam kết giúp bạn đạt khả năng giao tiếp tiếng Anh của 1 người bản xứ trưởng thành, đạt tương đương trình độ C1-C2 Châu Âu… View full description on the official store →
Lang Kingdom đã thiết kế lộ trình học với các mục tiêu rõ ràng cụ thể mà bạn khi bạn thực hiện xong là chắc chắn giỏi tiếng Anh giao tiếp. Lang Kingdom cam kết giúp bạn đạt khả năng giao tiếp tiếng Anh của 1 người bản xứ trưởng thành, đạt tương đương trình độ C1-C2 Châu Âu… View full description on the official store →
🧪
Tech & Domain Intel — langkingdom.com
- Mail provider
- Google Workspace
- Tech stack
- Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Lang Kingdom - Best At English
- Developer
- Lang Kingdom Pte. Ltd.
- Bundle ID
- com.langkingdom.langkingdom
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.langkingdom.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $673/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $274.99 per item
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.
📈Ratings growth4,598 ratings+39% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
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.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Lang Kingdom - Best At English: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 4,598 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
7 answers · auto-generated from this app's public dataHow much does Lang Kingdom - Best At English make per month?▴
Based on our ML-calibrated revenue forecast, Lang Kingdom - Best At English earns approximately $672/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 Lang Kingdom - Best At English profitable?▴
With estimated build cost $110K and monthly revenue $672, Lang Kingdom - Best At English looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Lang Kingdom - Best At English have?▴
Estimated audience: ~390K lifetime downloads, ~70K monthly active users, and ~21K 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 Lang Kingdom - Best At English?▴
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.
How much would Lang Kingdom - Best At English sell for?▴
Estimated acquisition value: $25K (marketplace range $15K – $30K). Calculated as 34× 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 Lang Kingdom - Best At English?▴
Lang Kingdom - Best At English is published by Lang Kingdom Pte. Ltd. on the Google Play 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 Lang Kingdom - Best At English's BU Score?▴
Lang Kingdom - Best At English has a BU Score of 67/100 (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.