Lockscreen English Word
69
Quality Score
Solid
✍️ GetAppValue analysis
“
Lockscreen English Word is an Android app from Wafour Edu in the Education category, currently rated 4.1★ across 29,287 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 69: 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
$40K
↳ What it would sell for · not monthly revenue
Marketplace range $30K – $50K · 30× MRR multiple
💸
~0.4× 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 |
| 🏷 Education category multiple | +6% |
Final multiple
30× MRR
👥 Estimated audience size
2.5M
Lifetime downloads (US-equivalent)
Monthly active
440K
Daily active
130K
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 / MAU
30% 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
Building · 56/100MID TIERcompetitive build-outGrowth Velocity
5.0
Founder Strength
4.5
Product Quality
8.2
Revenue Strength
3.7
Monetization Maturity
5.0
Defensibility
8.5
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.12★ across 29,287 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Strong subscription moat. Hard to outcompete on retention. Better angle: free alternative with one-time purchase, or feature parity for an underserved sub-niche.
💵 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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (29,287 ratings)METRIC | +$5,500 | |
| 5 starREVIEW | +$1,800 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Good rating (4.1★)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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Lockscreen English Word
- Developer
- Wafour Edu
- Bundle ID
- com.wafour.wapiceng
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- wafour.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
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $218/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $3.39 - $19.99 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.
🚀Update Frequency · Releases per Quarter5 releases tracked
🚀Version Release Timeline5 releases tracked
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
Learn English words naturally by seeing them again and again.
Lockscreen English Word Alarm helps you review vocabulary on your lock screen, save words from photos, and test your memory with quizzes.
Learn with images, pronunciation, and example sentences to understand each word and how it's used.
<strong><font color="#be671a">✔</font> Review Words Every Time You Check Your Phone</strong>
See English words on your lock screen whenever you check your phone. Even without a dedicated study session, you can keep reviewing vocabulary throughout the day.… View full description on the official store →
Lockscreen English Word Alarm helps you review vocabulary on your lock screen, save words from photos, and test your memory with quizzes.
Learn with images, pronunciation, and example sentences to understand each word and how it's used.
<strong><font color="#be671a">✔</font> Review Words Every Time You Check Your Phone</strong>
See English words on your lock screen whenever you check your phone. Even without a dedicated study session, you can keep reviewing vocabulary throughout the day.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.0.7🔄 updated 0d ago📂 Education💰 Free📺 Ad-supported💎 IAP $3.39 - $19.99 per item
📅
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 →
2026-09
📸
Refreshed store screenshots — 7 of 7 updated
2026-09
🔧
Shipped update — v1.10.3 → v2.0.7
→ 30 days after: reviews +21 low · multiple changes
2026-08
🔧
Shipped update — v1.9.17 → v1.10.3
→ 30 days after: reviews +21 high confidence
2026-07
🔧
Shipped update — v1.9.16.1 → v1.9.17
2026-06
🔧
Shipped update — v1.9.11.1 → v1.9.16.1
→ 30 days after: reviews +14 medium · co-occurring
2026-05
🚀
First tracked snapshot — initial data captured
→ 30 days after: reviews +9 high confidence
📸
Store Page History
7 SCREENSHOT CHANGESEvery time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.
iPhone screenshots
Slot 1
2 ver.
2 ver.
2026-05-08
2026-09-10
Slot 2
2 ver.
2 ver.
2026-05-08
2026-09-10
Slot 3
2 ver.
2 ver.
2026-05-08
2026-09-10
Slot 4
2 ver.
2 ver.
2026-05-08
2026-09-10
Slot 5
2 ver.
2 ver.
2026-05-08
2026-09-10
Slot 6
2 ver.
2 ver.
2026-05-08
2026-09-10
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Lockscreen English Word: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Wafour Edu
View all →📦 Portfolio summaryINDIE studio
5apps·$642/mocombined
✓ Diversified — top app contributes 34%; risk spread across portfolio
About this analysis
Why high confidence: 29,287 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Lockscreen English Word make per month?▴
Based on our ML-calibrated revenue forecast, Lockscreen English Word earns approximately $1.4K/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.
What apps are like Lockscreen English Word?▴
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.
Who makes Lockscreen English Word?▴
Lockscreen English Word is published by Wafour 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 Lockscreen English Word's BU Score?▴
Lockscreen English Word has a BU Score of 69/100 (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.