Vocabuo: Vokabeln lernen
59
Quality Score
Solid
Vocabuo: Vokabeln lernen
Medium confidence
✍️ bumetric analysis
“
Vocabuo: Vokabeln lernen is an iOS app from Vocabuo in the News category, currently rated 4.8★ across 172 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
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
$4.5K
per month
→
12-mo forecast
$3.9K – $14.1K
per month
→
24-mo forecast
$3.6K – $32.7K
per month
INDIE tierFREE
💡 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 (112 MB) | +$24K |
| ⚙ News complexity ×1.20 | +$15K |
Total estimate
$90K
👥 Estimated audience size
20K
Lifetime downloads (US-equivalent)
Monthly active
3.0K
Daily active
1.3K
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
43% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$4.5K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: review-mined risks present, low defensibility moat
6 months
$3.8K – $8.9K
12 months
$3.9K – $14.1K
24 months
$3.6K – $32.7K
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 · 32/100INDIE TIERFREE (NO MONETIZATION)limited signalGrowth Velocity
5.0
Founder Strength
3.3
Product Quality
5.2
Revenue Strength
3.7
Monetization Maturity
0.5
Defensibility
2.7
Market Position
2.0
Operational Safety
3.5
- 💰 Revenue: Modest — $1K - $11K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.78★ across 172 reviews — below category median.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ Risk: High — 9% subscription complaints, scam/fraud mentions detected, rating drift -0.68 ★ (recent 50 vs lifetime).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $53K-$98K. Discount applied for operational risk..
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 ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Early-stage install base (172 ratings)METRIC | +$400 | |
| Single-language (English only)METRIC | −$400 | |
| 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 · v5.1.2
- Introducing reports in stats - see how much you've learned in the past week/month/year
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Vocabuo: Vokabeln lernen
- Developer
- Vocabuo
- Bundle ID
- world.petr.vokabeln
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 17+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Vocabuo
- Description
- Vocabuo helps you learn English, Spanish, French, Italian, German and Swedish with smart spaced repetition flashcards. Use The Vocabulary App to learn from content.
- 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
- $201/mo
- Top-grossing rank
- 🇩🇪#66 /100
- 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
- Socials
- instagram instagram.com/vocabuo · linkedin linkedin.com/in/petr-kube%C5%A1-a9a48…
- petr@vocabuo.com
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth172 ratings+1464% lifetimeShow 3-year history estimate ▾
Tracked (22 weeks) Pre-tracking estimate (33 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution1 of 9 markets
🇩🇪
DE
Top-grossing rank: #66 / 100
Other markets
Outside top 100
in US, GB, DE, FR, JP, CA, AU, BR, IN
in US, GB, DE, FR, JP, CA, AU, BR, IN
This app currently ranks in only one of the 9 markets we monitor. Niche or regional apps often launch this way before global rollout. Rankings update daily.
📊Category Rank Trajectory#66 now · best #54 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀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
Vocabulary app for serious language learners. Vocabuo combines the best of of all language learning apps that came before:
- Study tens of thousands of English, Spanish, French, Swedish, Italian and German words.
- Each word comes with its own image, sentence, audio, and translation.
- Flashcards are scheduled using the proven Spaced Repetition System (SRS).
- Add words from your favorite videos, websites, ebooks, or use pre-made word lists to prepare for A1, A2, B1, B2, C1 exams.
- Practice real, commonly used words—sorted by their frequency in the language!… View full description on the official store →
- Study tens of thousands of English, Spanish, French, Swedish, Italian and German words.
- Each word comes with its own image, sentence, audio, and translation.
- Flashcards are scheduled using the proven Spaced Repetition System (SRS).
- Add words from your favorite videos, websites, ebooks, or use pre-made word lists to prepare for A1, A2, B1, B2, C1 exams.
- Practice real, commonly used words—sorted by their frequency in the language!… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 112 MB🔞 17+📱 iOS 15.6+🔖 v5.1.2🔄 updated 0d ago🌐 EN📂 News💰 Paid
📅
What Worked™ · Development Pipeline
10 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
⭐
Rating ↑ 4.41 → 4.78 (improved 0.37★)
2026-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↑ 4.38 → 4.70 (improved 0.32★)
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2025-09
📈
Crossed 10 ratings — social-proof flywheel kicking in
2025-06
⭐
Rating ↑ 3.25 → 3.60 (improved 0.35★)
2025-05
⭐
Rating ↑ 2.67 → 3.25 (improved 0.58★)
2024-10
⭐
Rating ↑ 2.00 → 2.67 (improved 0.67★)
2024-10
⭐
Rating ↓ 3.00 → 2.00 (dropped 1.00★)
2024-09
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 66 reviews across 6 markets● 73% positive · ● 14% neutral · ● 14% negative · Rating drift: -0.68★ (declining — recent 50: 4.1★ vs lifetime: 4.78★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇺🇸 US
+0.75
🇬🇧 GB
+0.56
🇫🇷 FR
+0.54
🇨🇦 CA
+0.53
🇧🇷 BR
+0.47
🇩🇪 DE
+0.29
Top praise themes
language learning ×4 brazilian portuguese ×4 spaced repetition ×4 peut pas ×4 example sentences ×3 hidden gem ×3 auch der ×3 kann man ×3
Top complaint themes
ich ×5 und ×5 swedish ×4 progress ×3 support ×3 idea ×3 word ×3
Risk signals
Subscription complaints: 9% Fraud / scam mentions: 1.5%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 5★ | 2 | 5★ this version |
| 🇧🇷 BR | 4.88★ | 25 | 4.88★ this version |
| 🇨🇦 CA | 4.68421★ | 19 | 4.68421★ this version |
| 🇩🇪 DE | 4.72515★ | 342 | 4.72515★ this version |
| 🇫🇷 FR | 4.58333★ | 48 | 4.58333★ this version |
| 🇬🇧 GB | 4.61538★ | 39 | 4.61538★ this version |
| 🇮🇳 IN | 4.75★ | 4 | 4.75★ this version |
| 🇯🇵 JP | 5★ | 1 | 5★ this version |
| 🇺🇸 US | 4.77949★ | 195 | 4.77949★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Vocabuo: Vokabeln lernen: 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: 172 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Vocabuo make per month?▴
Based on our ML-calibrated revenue forecast, Vocabuo earns approximately $200/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 Vocabuo?▴
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.
Who makes Vocabuo?▴
Vocabuo is published by Vocabuo 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 Vocabuo's BU Score?▴
Vocabuo 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.