Clozemaster: Sprachen lernen
69
Quality Score
Solid
Clozemaster: Sprachen lernen
Medium confidence
✍️ bumetric analysis
“
Clozemaster: Sprachen lernen is an iOS app from Language Innovation LLC in the News category, currently rated 4.8★ across 1,686 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 69: 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tierSUBSCRIPTION
💡 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
$70K
↳ What it cost to build · not monthly revenue
Likely range $50K – $95K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.3y at current MRR
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 (65 MB) | +$5K |
| ⚙ News complexity ×1.20 | +$11K |
Total estimate
$70K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$75K
↳ What it would sell for · not monthly revenue
Marketplace range $50K – $100K · 16× MRR multiple
💸
~1.1× build cost (break-even+)
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 |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 News category multiple | -5% |
Final multiple
16× MRR
👥 Estimated audience size
200K
Lifetime downloads (US-equivalent)
Monthly active
30K
Daily active
13K
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
45% 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)
Direction
Tailwinds: monetization model proven
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 · 59/100MID TIERSUBSCRIPTIONcompetitive build-outGrowth Velocity
5.0
Founder Strength
3.7
Product Quality
7.2
Revenue Strength
3.7
Monetization Maturity
9.5
Defensibility
8.4
Market Position
2.0
Operational Safety
7.4
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.81★ across 1,686 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ Risk: Moderate — rating drift -0.47 ★ (recent 50 vs lifetime).
🎯 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 12 of 12 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 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (1,686 ratings)METRIC | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (31 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| too expensiveREVIEW | −$1,000 |
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 · v3.7.0
We've added Streak Saves so you can protect your streak when life gets busy! We've also added milestone celebrations, custom collection improvements, and performance improvements including faster app loading.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Clozemaster: Sprachen lernen
- Developer
- Language Innovation LLC
- Bundle ID
- com.languageinnovation.clozemaster
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 12+
- Languages
- SQ, BG, HR, CS, DA, NL, EN, ET, FI, FR, DE, EL, HI, HU, IT, JA, KO, LT, NB, PL, PT, RU, SR, ZH, SL, ES, SV, TL, ZH, TR, VI
Company
- Website
- Not found
- Tagline
- Get fluent faster.
- Description
- Clozemaster is language learning gamification through mass exposure to vocabulary in context. Great post-Duolingo app and useful for language learners of all levels. Free to sign up and play!
- 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
- $4.5K/mo
- Top-grossing rank
- Outside top 100 in US News
- 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
- facebook facebook.com/clozemaster · instagram instagram.com/clozemaster · twitter twitter.com/clozemaster · youtube youtube.com/@clozemaster
- Not found
- Phone
- Not found
- Contact page
- clozemaster.com/contact
- About page
- clozemaster.com/about
📈Ratings growth1,686 ratings+45% lifetimeShow 3-year history estimate ▾
Tracked (53 weeks) Pre-tracking estimate (36 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 Timeline2 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 50+ languages with Clozemaster — the gamified language learning app for A2-C1 learners to master vocabulary by filling in missing words in real-world contexts.
[ MASTER LANGUAGES WITH THE CLOZE TEST METHOD ]
• Level up your language skills with cloze tests, where you fill in the missing word, challenging you to complete sentences.
• Learn vocabulary in context, moving beyond single-word flashcards to complete sentences drawn from real-life scenarios.
[ CONTEXTUAL LEARNING FOR REAL-WORLD FLUENCY ]… View full description on the official store →
[ MASTER LANGUAGES WITH THE CLOZE TEST METHOD ]
• Level up your language skills with cloze tests, where you fill in the missing word, challenging you to complete sentences.
• Learn vocabulary in context, moving beyond single-word flashcards to complete sentences drawn from real-life scenarios.
[ CONTEXTUAL LEARNING FOR REAL-WORLD FLUENCY ]… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 65 MB🔞 12+📱 iOS 15.1+🔖 v3.7.0🔄 updated 0d ago🌐 SQ, BG, HR, CS, DA +26📂 News💰 Free
📅
What Worked™ · Development Pipeline
5 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
📈
Crossed 500 ratings — social-proof flywheel kicking in
2022-09
📈
Crossed 100 ratings — social-proof flywheel kicking in
2021-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
2017-12
📈
Crossed 10 ratings — social-proof flywheel kicking in
2016-09
🚀
First tracked snapshot — initial data captured
🔎
ASO Keyword Positions
BEST RANK #28Ranked for 1 App Store search query in our last keyword sweep. Lower position = closer to the top.
vocabulary builder·#28🇺🇸
Last sweep: 2026-05-19 · iTunes Search API
🗣
Voice of Customer
Based on 551 reviews across 8 markets● 86% positive · ● 7% neutral · ● 7% negative · Rating drift: -0.47★ (declining — recent 50: 4.34★ vs lifetime: 4.81★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇺🇸 US
+0.70
🇨🇦 CA
+0.69
🇦🇺 AU
+0.65
🇬🇧 GB
+0.62
🇯🇵 JP
+0.42
🇫🇷 FR
+0.41
🇧🇷 BR
+0.36
🇩🇪 DE
+0.29
Top praise themes
highly recommend ×14 new words ×12 better duolingo ×12 learning tool ×11 free version ×11 learning new ×10 new vocabulary ×10 spaced repetition ×10
Top complaint themes
flash card ×3 generated chatgpt ×3 free plan ×3 latin american ×3 american spanish ×3 sentences unless ×3 pay month ×3 customer service ×3
Risk signals
Subscription complaints: 5%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.82759★ | 87 | 4.82759★ this version |
| 🇧🇷 BR | 4.82813★ | 64 | 4.82813★ this version |
| 🇨🇦 CA | 4.7868★ | 197 | 4.7868★ this version |
| 🇩🇪 DE | 4.6569★ | 239 | 4.6569★ this version |
| 🇫🇷 FR | 4.8★ | 70 | 4.8★ this version |
| 🇬🇧 GB | 4.79251★ | 347 | 4.79251★ this version |
| 🇮🇳 IN | 4.85714★ | 21 | 4.85714★ this version |
| 🇯🇵 JP | 4.875★ | 48 | 4.875★ this version |
| 🇺🇸 US | 4.80996★ | 1,747 | 4.80996★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Clozemaster: Sprachen lernen: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Language Innovation LLC
View all →📦 Portfolio summaryINDIE studio
2apps·$505/mocombined
⚠ Concentrated — top app contributes 100% of combined revenue (single-app dependency)
About this analysis
Why medium confidence: 1,686 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Clozemaster make per month?▴
Based on our ML-calibrated revenue forecast, Clozemaster earns approximately $4.5K/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 Clozemaster?▴
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 Clozemaster?▴
Clozemaster is published by Language Innovation LLC 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 Clozemaster's BU Score?▴
Clozemaster 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.