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50
Quality Score
Solid

Classic 21 BlackJack

3.8 ✍️ Editor
✍️ bumetric analysis

Classic 21 BlackJack is an Android app from 奇遊創意網路科技有限公司 in the Card category, currently rated 3.8★ across 278 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 50: Solid (established niche player). For a Card 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.

💰 Revenue · today and ahead
Today
$5.0K/mo
In 12 months
$5.2K – $10.8K
In 24 months
$6.4K – $19.2K
MID tier
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📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
💰 Estimated build cost
$220K
Likely range: $165K – $295K

Synthetic estimate derived from category, file size, screen count, monetization layer, and platform reach. Methodology benchmarks: Clutch + GoodFirms 2024-2026 agency surveys. See /methodology.

Breakdown
MVP baseline (design + 1-store ship)+$28K
5 unique screens × $4.5K+$22K
In-app purchase plumbing+$9K
Card complexity ×1.50+$29K
Cross-platform reach (iOS + Android)+$49K
13.5y maintenance × ~1-person team+$81K
🔬

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 · 52/100MID TIERunderperforming peers
RevenueQualityMarketGrowthMoatSafetyFounderMonetiz.
Revenue Strength
3.7
Product Quality
5.3
Market Position
0.0
Growth Velocity
5.0
Defensibility
10.0
Operational Safety
7.0
Founder Strength
5.7
Monetization Maturity
5.0
  • 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
  • ⭐ Quality: 3.77★ across 278 reviews — below category median.
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: ⚠ last update 640d ago — possibly dormant.
  • ⚠️ Risk: Moderate — dormant (640d 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.
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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 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mature app (13y old)METRIC
+$1,500
Ad-supported / freemiumMETRIC
+$600
Early-stage install base (278 ratings)METRIC
+$400
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.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v6.9.1🔄 updated 1y ago📂 Card💰 Free📺 Ad-supported💎 IAP $0.99 - $99.99 per item🚀 Launched 2012 (13y old)

📝 About this app

Play blackjack against the dealer and see who can get 21 without going bust!

√ Blackjack pays 3 to 2
√ Insurance pays 2 to 1
√ Dealer must stand on 17.
√ Split option available if the first two cards are the same, inclusive of Aces
√ Double down option available if you wish to double your bet after seeing the first two cards
√ Double on any first two cards and allow double after split
√ Surrender option available if you do not like your first two cards
√ Insurance option available if the dealer's first card is Ace
√ Shuffling after half of the 6-deck cards played

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Classic 21 BlackJack
Developer
奇遊創意網路科技有限公司
Bundle ID
com.qiyofun.android.game.blackjack
App Store URL
Open in App Store
Category
Card
Content rating
Not found
Languages
Not found

Company

Website
www.qiyogame.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
$320/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 growth278 ratings+13% lifetimeShow 3-year history estimate ▾Jun 2023Dec 2024May 2026
Tracked (1 weeks) Pre-tracking estimate (35 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.

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📦 Portfolio summaryINDIE studio
9apps·$1K/mocombined
✓ Diversified — top app contributes 23%; risk spread across portfolio

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