QB - a cube's tale
65
Quality Score
Solid
QB - a cube's tale
Medium confidence
✍️ bumetric analysis
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QB - a cube's tale is an Android app from Stephan Goebel in the Puzzle category, currently rated 4.8★ across 258 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 65: Solid (established niche player). For a Puzzle 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
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$125K
↳ What it cost to build · not monthly revenue
Likely range $95K – $170K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~2.2y 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 |
| ⚙Puzzle complexity ×1.60 | +$30K |
| 🌐Cross-platform reach (iOS + Android) | +$44K |
Total estimate$125K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$75K
↳ What it would sell for · not monthly revenue
Marketplace range $50K – $75K · 14× MRR multiple
💸~0.6× 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 |
| ⭐★ rating ≥ 4.7 (premium) | +15% |
| 🏷Puzzle category multiple | -12% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple14× MRR
👥 Estimated audience size
41K
Lifetime downloads (US-equivalent)
Monthly active
4.1K
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
| 📲Puzzle engagement | ~160 installs / rating |
| 🔁Puzzle D30 retention | 10% |
| 📍DAU / MAU stickiness | 0.32 |
DAU / MAU32% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
Medium confidence · 55%
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 | Puzzle |
| 📦Tiny game bundle | → Native 2D engine |
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 39/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
4.7
Product Quality
6.4
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
2.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.6★ across 207 reviews — solid.
- 📍 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 = $3K-$6K. Portfolio play ($4K/mo combined) commands premium.
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:
| Paid app ($3.49)METRIC | +$2,800 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Mature app (8y old)METRIC | +$1,500 | |
| Early-stage install base (258 ratings)METRIC | +$400 |
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
- QB - a cube's tale
- Developer
- Stephan Goebel
- Bundle ID
- de.goebel.QBpaid
- App Store URL
- Open in App Store
- Category
- Puzzle
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- 20edges.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
- $4.7K/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 growth258 ratings+39% 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.
📝 About this app
Nominated for Best Mobile Game at German Computer Games Award 2018.
„I live and breathe for these brilliantly hand-crafted puzzle games that respect the player’s intelligence and time.“ – AppUnwrapper
In QB - a cube's tale, you guide the cube QB through a stylistic, rudimentary world. On his journey, QB is faced with great challenges. Various other cubes obstruct his way to the coveted black cube, which will bring him closer to his goal.
PRESENTATION
QB - a cube's tale is an isometric puzzler that manages to challenge you with very few elements.… View full description on the official store →
„I live and breathe for these brilliantly hand-crafted puzzle games that respect the player’s intelligence and time.“ – AppUnwrapper
In QB - a cube's tale, you guide the cube QB through a stylistic, rudimentary world. On his journey, QB is faced with great challenges. Various other cubes obstruct his way to the coveted black cube, which will bring him closer to his goal.
PRESENTATION
QB - a cube's tale is an isometric puzzler that manages to challenge you with very few elements.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.2.5🔄 updated 0d ago📂 Puzzle💰 Free
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for QB - a cube's tale: 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: 258 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does QB - a cube's tale make per month?▴
Based on our ML-calibrated revenue forecast, QB - a cube's tale earns approximately $4.7K/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 QB - a cube's tale?▴
Browse the full Puzzle 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 QB - a cube's tale?▴
QB - a cube's tale is published by Stephan Goebel 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 QB - a cube's tale's BU Score?▴
QB - a cube's tale has a BU Score of 65/100 (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.