62
Quality Score
Solid
Học Phát Âm Tiếng Anh chuẩn
Medium confidence
✍️ bumetric analysis
“
Học Phát Âm Tiếng Anh chuẩn is an Android app from Tự Học Tiếng Anh BYS EDU in the Education category, currently rated 4.7★ across 1,089 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 62: 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
$512
per month
→
12-mo forecast
$448 – $1615
per month
→
24-mo forecast
$415 – $3736
per month
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
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$140K
↳ What it cost to build · not monthly revenue
Likely range $105K – $190K
$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 |
| ⚙Education complexity ×1.20 | +$10K |
| 🌐Cross-platform reach (iOS + Android) | +$33K |
| ⚙7.8y maintenance × ~1-person team | +$46K |
Total estimate$140K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$10K
↳ What it would sell for · not monthly revenue
Marketplace range $10K – $15K · 22× MRR multiple
💸~0.1× build cost (under-water)
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 |
| 📅7.8y proven track record | +20% |
| ⭐★ rating ≥ 4.7 (premium) | +15% |
| 🏷Education category multiple | +6% |
Final multiple22× MRR
👥 Estimated audience size
64K
Lifetime downloads (US-equivalent)
Monthly active
7.5K
Daily active
2.2K
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 |
| 📅7.8y of rating accumulation | -30% |
| 🔁Education D30 retention | 18% |
| 📍DAU / MAU stickiness | 0.30 |
DAU / MAU29% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
Also possible
Flutter
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
| 🏷Category context | Education |
| 📦Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Likely abandoned
88%
Last shipped 2021-08-22 · 1736 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
| 📅4y+ since last update | Likely abandoned |
VerdictLikely abandoned
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$512/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
6 months
$436 – $1.0K
12 months
$448 – $1.6K
24 months
$415 – $3.7K
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
Pre-traction · 40/100INDIE TIERlimited signalGrowth Velocity
5.0
Founder Strength
3.7
Product Quality
8.5
Revenue Strength
2.7
Monetization Maturity
1.0
Defensibility
4.0
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Marginal — $205 - $1281/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.7★ across 1,089 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 1734d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (1734d since update).
🎯 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.
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 (4.7★)METRIC | +$2,200 | |
| Low install base (1,089 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 →🔖 v2.2.0🔄 updated 4y ago📂 Education💰 Free📺 Ad-supported🚀 Launched 2018 (7y old)
📝 About this app
<b>Learn Standard English Pronunciation - English Self-Taught </b>
►Learning vowels and consonants, with correct examples attached
► For each sound in English, there are pictures and video instructions on how to pronounce it to help you see your mouth and see clearly English pronunciation practice videos
► At each sound, there are rules and guidelines for the theory of how to pronounce it
► Free pronunciation practice gives you the freedom to practice randomly, or according to the words you type… View full description on the official store →
►Learning vowels and consonants, with correct examples attached
► For each sound in English, there are pictures and video instructions on how to pronounce it to help you see your mouth and see clearly English pronunciation practice videos
► At each sound, there are rules and guidelines for the theory of how to pronounce it
► Free pronunciation practice gives you the freedom to practice randomly, or according to the words you type… View full description on the official store →
🧪
Tech & Domain Intel — github.com
- Mail provider
- Microsoft 365
- Tech stack
- Microsoft 365 · Apple Pay / Sign in with Apple · Atlassian (Jira/Confluence) · Meta (Facebook) Ads · Google Workspace · Loom · Shopify · Stripe
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
- Học Phát Âm Tiếng Anh chuẩn
- Developer
- Tự Học Tiếng Anh BYS EDU
- Bundle ID
- com.learnenglish.pronounce
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- github.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
- $513/mo
- Top-grossing rank
- Not found
- 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.
📈Ratings growth1,089 ratings+58% 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.
Full revenue analysis
Read the article-style breakdown for Học Phát Âm Tiếng Anh chuẩn: 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: 1,089 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Học Phát Âm Tiếng Anh chuẩn make per month?▴
Based on our ML-calibrated revenue forecast, Học Phát Âm Tiếng Anh chuẩn earns approximately $512/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 Học Phát Âm Tiếng Anh chuẩn profitable?▴
With estimated build cost $140K and monthly revenue $512, Học Phát Âm Tiếng Anh chuẩn 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 Học Phát Âm Tiếng Anh chuẩn have?▴
Estimated audience: ~64K lifetime downloads, ~7K monthly active users, and ~2K 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 Học Phát Âm Tiếng Anh chuẩn?▴
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 Học Phát Âm Tiếng Anh chuẩn built with?▴
Our heuristic places Học Phát Âm Tiếng Anh chuẩn on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Học Phát Âm Tiếng Anh chuẩn still actively maintained?▴
Maintenance status: Likely abandoned (88% abandonment risk). Last shipped version was 4+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Học Phát Âm Tiếng Anh chuẩn sell for?▴
Estimated acquisition value: $10K (marketplace range $10K – $15K). Calculated as 22× 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 Học Phát Âm Tiếng Anh chuẩn last updated?▴
Học Phát Âm Tiếng Anh chuẩn last shipped a new version on 2021-08-22 — more than 4 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Học Phát Âm Tiếng Anh chuẩn?▴
Học Phát Âm Tiếng Anh chuẩn is published by Tự Học Tiếng Anh BYS EDU 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 Học Phát Âm Tiếng Anh chuẩn's BU Score?▴
Học Phát Âm Tiếng Anh chuẩn has a BU Score of 62/100 (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.