EF Hello: Learn English
68
Quality Score
Solid
EF Hello: Learn English
Medium confidence
✍️ bumetric analysis
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EF Hello: Learn English is an iOS app from Signum International AG in the Education category, currently rated 4.8★ across 9,203 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Quality Score is 68: 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
$700K
per month
→
12-mo forecast
$741K – $1141K
per month
→
24-mo forecast
$886K – $1645K
per month
BIG 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
$90K
↳ What it cost to build · not monthly revenue
Likely range $70K – $120K
$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 |
| 📦 Asset bundle (114 MB) | +$25K |
| ⚙ Education complexity ×1.20 | +$15K |
Total estimate
$90K
👥 Estimated audience size
780K
Lifetime downloads (US-equivalent)
Monthly active
140K
Daily active
42K
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
$700K/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$690K – $933K
12 months
$741K – $1.1M
24 months
$886K – $1.6M
Compound growth at +2.5% MoM (tier baseline for BIG). Range widens with horizon — typical noise band ±15% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Mixed signals · 57/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
6.2
Product Quality
8.7
Revenue Strength
5.8
Monetization Maturity
1.0
Defensibility
6.9
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.84★ across 9,203 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 = $12.6M-$22.4M.
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:
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Low install base (9,203 ratings)METRIC | +$1,500 | |
| Multilingual (19 languages)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.
🆕 What's New · v9.1.2
We've been working hard on fixing some annoying bugs this week and implementing some general improvements.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- EF Hello: Learn English
- Developer
- Signum International AG
- Bundle ID
- com.ef.efhello
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- AR, DA, NL, EN, FR, DE, IT, JA, KO, NB, PT, RU, ZH, ES, SV, TH, ZH, TR, VI
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- 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
- $144/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
Contacts & Socials data not yet collected for this app.
📈Ratings growth9,259 ratings+47% lifetimeShow 3-year history estimate ▾
Tracked (9 weeks) Pre-tracking estimate (35 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.
🚀Version Release Timeline3 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
Scared of Speaking English? We Get It.
Learning a new language is challenging, but EF Hello turns it into an easy, fun journey, just like chatting with a friend!
Meet Addi: Your AI English Tutor Addi is ready to help you! Focus on real-life conversational skills, help you to speak English with confidence—anytime, anywhere.
Your English Game-Changer with EF Hello!
Personal AI-Language Tutor
Experience a patient, always available tutor with advanced AI. Addi delivers real-time, helpful feedback on your pronunciation, grammar, and fluency.
Bite-Sized Learning for Impactful Results… View full description on the official store →
Learning a new language is challenging, but EF Hello turns it into an easy, fun journey, just like chatting with a friend!
Meet Addi: Your AI English Tutor Addi is ready to help you! Focus on real-life conversational skills, help you to speak English with confidence—anytime, anywhere.
Your English Game-Changer with EF Hello!
Personal AI-Language Tutor
Experience a patient, always available tutor with advanced AI. Addi delivers real-time, helpful feedback on your pronunciation, grammar, and fluency.
Bite-Sized Learning for Impactful Results… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 114 MB🔞 4+📱 iOS 15.1+🔖 v9.1.2🔄 updated 0d ago🌐 AR, DA, NL, EN, FR +14📂 Education💰 Paid
📅
What Worked™ · Development Pipeline
3 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 →
2026-06
🔧
Shipped update — v9.1.1 → v9.1.2
→ 30 days after: reviews +46 medium · co-occurring
2026-05
🔧
Shipped update — v9.0.4 → v9.1.1
→ 30 days after: reviews +63 medium · co-occurring
2026-03
🚀
First tracked snapshot — initial data captured
🧪
Tech & Domain Intel — hello.ef.com
- Tech stack
- Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.9226★ | 323 | 4.9226★ this version |
| 🇧🇷 BR | 4.92211★ | 1,926 | 4.92211★ this version |
| 🇨🇦 CA | 4.83248★ | 782 | 4.83248★ this version |
| 🇩🇪 DE | 4.80773★ | 2,200 | 4.80773★ this version |
| 🇫🇷 FR | 4.73461★ | 2,193 | 4.73461★ this version |
| 🇬🇧 GB | 4.84856★ | 1,116 | 4.84856★ this version |
| 🇮🇳 IN | 4.76042★ | 288 | 4.76042★ this version |
| 🇯🇵 JP | 4.70156★ | 1,347 | 4.70156★ this version |
| 🇺🇸 US | 4.84★ | 9,256 | 4.84★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for EF Hello: Learn English: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Signum International AG
View all →📦 Portfolio summaryINDIE studio
11apps·$4K/mocombined
✓ Diversified — top app contributes 30%; risk spread across portfolio
About this analysis
Why medium confidence: 9,203 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does EF Hello make per month?▴
Based on our ML-calibrated revenue forecast, EF Hello earns approximately $143/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 EF Hello?▴
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 EF Hello?▴
EF Hello is published by Signum International AG 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 EF Hello's BU Score?▴
EF Hello has a BU Score of 68/100 (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.