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魔塔21层

62
Quality Score
Solid

魔塔21层

Medium confidence
4.6 Google Play rating
✍️ Bumetric analysis

魔塔21层 is an Android app from ITWonder in the Role Playing category, currently rated 4.6★ across 2,202 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 62: Solid (established niche player). For a Role Playing 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
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📊 Performance Tracking LIVE

1 snapshots on record
idle
0%
Rating
4.6
Reviews
2,202 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
1
since Aug 2026
ONE-TIME · BUILD 💰 Estimated build cost
$235K
What it cost to build · not monthly revenue
Likely range $175K – $315K
$25K · MVP floor $100K · indie scale $500K+ · studio build
📈 Pays back in ~3.9y 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
Role Playing complexity ×2.30 +$65K
🌐 Cross-platform reach (iOS + Android) +$63K
9.4y maintenance × ~1-person team +$56K
Total estimate $235K
ONE-TIME · EXIT VALUE 💵 Estimated acquisition value
$100K
What it would sell for · not monthly revenue
Marketplace range $75K – $125K · 18× MRR multiple
💸 ~0.4× 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
📅 9.4y proven track record +20%
★ rating ≥ 4.4 (solid) +8%
🏷 Role Playing category multiple -8%
Final multiple 18× MRR
👥 Estimated audience size
200K
Lifetime downloads (US-equivalent)
Monthly active
19K
Daily active
7.8K

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
📲 Role Playing engagement ~130 installs / rating
📅 9.4y of rating accumulation -30%
🔁 Role Playing D30 retention 18%
📍 DAU / MAU stickiness 0.40
DAU / MAU 40% 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 Role Playing
📦 Tiny game bundle → Native 2D engine
💀 Maintenance status
Likely abandoned
88%
Last shipped 2024-01-12 · 986 days ago
0 · Active 50 · At risk 100 · Abandoned

Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.

Risk signals
📅 2y+ since last update Likely abandoned
Verdict Likely abandoned
🔬

How we forecast this revenue

MEDIUM CONFIDENCE
Baseline
$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

Below median · 44/100MID TIERunderperforming peers
GrowthFounderQualityRevenueMonetiz.MoatMarketSafety
Growth Velocity
5.0
Founder Strength
4.7
Product Quality
8.2
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
5.8
Market Position
0.0
Operational Safety
7.0
  • 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
  • ⭐ Quality: 4.56★ across 2,202 reviews — strong (top 10%).
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: ⚠ last update 982d ago — possibly dormant.
  • ⚠️ Risk: Moderate — dormant (982d since update).
🎯 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 = $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

MODEL
Revenue 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:
Excellent rating (4.6★)METRIC
+$2,200
Low install base (2,202 ratings)METRIC
+$1,500
Mature app (9y old)METRIC
+$1,500
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average 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
魔塔21层
Developer
ITWonder
Bundle ID
com.itwonder.mota21g
App Store URL
Open in App Store
Category
Role Playing
Content rating
Not found
Languages
Not found

Company

Website
Not found
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
Model estimate / mo
$5.0K/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.
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

1. The 21st floor of the Magic Tower is a classic pixel RGB monster fighting game.
2. Must reach the 21st floor of the magic tower to rescue the trapped princess.
3. When you encounter a monster, it will fight automatically, but when you encounter a monster that you can't defeat, you will not fight with it. There are countless equipment and treasures in the game!
4. The game must use your brain to calculate to win the final victory.
5. There are various treasures in the game to help players pass the level, and everyone should watch the dialogue carefully.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v1.1.5🔄 updated 2y ago📂 Role Playing💰 Free📺 Ad-supported🚀 Launched 2017 (9y old)
🔔

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📝 Description

95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for 魔塔21层: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →

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About this analysis
ZCAnalyzed by Zakhar Chumak · founder, Bumetric·Full methodology·Medium confidence

Why medium confidence: 2,202 ratings · no founder-verified revenue (model estimate only).

Frequently Asked Questions

10 answers · auto-generated from this app's public data
How much does 魔塔21层 make per month?
Based on our ML-calibrated revenue forecast, 魔塔21层 earns approximately $5.0K/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.
Is 魔塔21层 profitable?
With estimated build cost $235K and monthly revenue $5.0K, 魔塔21层 looks slow ROI — payback period is around 3.9 years at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does 魔塔21层 have?
Estimated audience: ~200K lifetime downloads, ~19K monthly active users, and ~7K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like 魔塔21层?
Browse the full Role Playing 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.
What is 魔塔21层 built with?
Our heuristic places 魔塔21层 on the Native Android (Kotlin) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is 魔塔21层 still actively maintained?
Maintenance status: Likely abandoned (88% abandonment risk). Last shipped version was 2+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would 魔塔21层 sell for?
Estimated acquisition value: $100K (marketplace range $75K – $125K). Calculated as 18× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was 魔塔21层 last updated?
魔塔21层 last shipped a new version on 2024-01-12 — more than 2 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes 魔塔21层?
魔塔21层 is published by ITWonder 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 魔塔21层's BU Score?
魔塔21层 has a BU Score of 62/100 (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.