Kingdom Guard: Tower Defense
76
Quality Score
Strong
✍️ bumetric analysis
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Kingdom Guard: Tower Defense is an Android app from Tap4fun (Hong Kong) Limited in the Strategy category, currently rated 4.3★ across 388,760 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 76: Strong (healthy traction). For a Strategy app, that means healthy traction. 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
$195K
↳ What it cost to build · not monthly revenue
Likely range $145K – $265K
$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 |
| 💎 In-app purchase plumbing | +$9K |
| ⚙ Strategy complexity ×2.10 | +$65K |
| 🌐 Cross-platform reach (iOS + Android) | +$68K |
Total estimate
$195K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$30K
↳ What it would sell for · not monthly revenue
Marketplace range $20K – $35K · 28× MRR multiple
💸
~0.2× build cost (under-water)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎 IAP / freemium model base | 28× MRR |
| 🏷 Strategy category multiple | -5% |
| ⭐ Mature user base (100K+ ratings) | +5% |
Final multiple
28× MRR
👥 Estimated audience size
50.5M
Lifetime downloads (US-equivalent)
Monthly active
9.1M
Daily active
3.1M
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
| 📲 Strategy engagement | ~130 installs / rating |
| 🔁 Strategy D30 retention | 18% |
| 📍 DAU / MAU stickiness | 0.35 |
DAU / MAU
35% 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 | Strategy |
| 📦 Tiny game bundle | → Native 2D engine |
🔬
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 · 61/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
5.5
Product Quality
8.7
Revenue Strength
5.8
Monetization Maturity
5.0
Defensibility
9.1
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.35★ across 388,760 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: 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 = $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:
| High install base (388,760 ratings)METRIC | +$12,000 | |
| bugsREVIEW | −$1,800 | |
| Good rating (4.3★)METRIC | +$800 | |
| Established app (6y 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Kingdom Guard: Tower Defense
- Developer
- Tap4fun (Hong Kong) Limited
- Bundle ID
- com.tap4fun.odin.kingdomguard
- App Store URL
- Open in App Store
- Category
- Strategy
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.tap4fun.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
- $11/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $99.99 per item
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 growth388,760 ratings+45% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 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
Titan has invaded our kingdom, and our guardian dragons have all but disappeared.
Finally, you discovered the fabled, last dragon egg, just as Titan descends upon you with his dark legions.
Come train and merge your soldiers, and protect the dragon egg to save the world!
1. Merge to upgrade
A brand new way of upgrading that doesn't involve boring city building and troop production. Now you have total control over your units! Merge two units of the same level and type to create a higher level unit!
2. Tower Defense
Train and merge your soldiers to defend against the enemy.… View full description on the official store →
Finally, you discovered the fabled, last dragon egg, just as Titan descends upon you with his dark legions.
Come train and merge your soldiers, and protect the dragon egg to save the world!
1. Merge to upgrade
A brand new way of upgrading that doesn't involve boring city building and troop production. Now you have total control over your units! Merge two units of the same level and type to create a higher level unit!
2. Tower Defense
Train and merge your soldiers to defend against the enemy.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.0.576🔄 updated 0d ago📂 Strategy💰 Free📺 Ad-supported💎 IAP $0.99 - $99.99 per item
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Kingdom Guard: Tower Defense: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Tap4fun (Hong Kong) Limited
View all →📦 Portfolio summaryINDIE studio
7apps·$952/mocombined
✓ Diversified — top app contributes 23%; risk spread across portfolio
About this analysis
Why high confidence: 388,760 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Kingdom Guard make per month?▴
Based on our ML-calibrated revenue forecast, Kingdom Guard earns approximately $1.0K/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.
What apps are like Kingdom Guard?▴
Browse the full Strategy 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 Kingdom Guard?▴
Kingdom Guard is published by Tap4fun (Hong Kong) Limited 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 Kingdom Guard's BU Score?▴
Kingdom Guard has a BU Score of 76/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.