Castle Solitaire: Card Game
77
Quality Score
Strong
Castle Solitaire: Card Game
High confidence
✍️ bumetric analysis
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Castle Solitaire: Card Game is an Android app from MobilityWare in the Card category, currently rated 4.7★ across 100,928 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 77: Strong (healthy traction). For a Card 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
$140K
↳ What it cost to build · not monthly revenue
Likely range $105K – $190K
$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 |
| ⚙ Card complexity ×1.50 | +$29K |
| 🌐 Cross-platform reach (iOS + Android) | +$49K |
Total estimate
$140K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$35K
↳ What it would sell for · not monthly revenue
Marketplace range $25K – $45K · 27× 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 |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Card category multiple | -15% |
| ⭐ Mature user base (100K+ ratings) | +5% |
Final multiple
27× MRR
👥 Estimated audience size
15.0M
Lifetime downloads (US-equivalent)
Monthly active
1.8M
Daily active
540K
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
| 📲 Card engagement | ~150 installs / rating |
| 🔁 Card D30 retention | 12% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
30% 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 | Card |
| 📦 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 · 64/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
7.0
Product Quality
9.3
Revenue Strength
5.8
Monetization Maturity
5.0
Defensibility
9.3
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.66★ across 100,928 reviews — exceptional (top 1% in category).
- 📍 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (100,928 ratings)METRIC | +$12,000 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Established app (7y 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
- Castle Solitaire: Card Game
- Developer
- MobilityWare
- Bundle ID
- com.mobilityware.CastleSolitaire
- App Store URL
- Open in App Store
- Category
- Card
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.mobilityware.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
- $1.3K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $1.99 - $29.99 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 growth100,928 ratings+39% lifetimeShow 3-year history estimate ▾
Tracked (2 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🚀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
Meet your new addiction!
Break out of your boredom cell and cash in on the fun with Castle Solitaire card games!
Castle Solitaire is a fun and free Solitaire card game from MobilityWare, the maker of all your favorite solitaire card games. In this fast and easy to learn game, you can clash with kings, crush your enemies, build your castles, and fly your banner high!
== How to Play ==
To become a Castle Solitaire champion, fill the four castles from Ace to King. Tap to arrange cards of the same suit in descending order below the castles.… View full description on the official store →
Break out of your boredom cell and cash in on the fun with Castle Solitaire card games!
Castle Solitaire is a fun and free Solitaire card game from MobilityWare, the maker of all your favorite solitaire card games. In this fast and easy to learn game, you can clash with kings, crush your enemies, build your castles, and fly your banner high!
== How to Play ==
To become a Castle Solitaire champion, fill the four castles from Ace to King. Tap to arrange cards of the same suit in descending order below the castles.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.3.1.1845🔄 updated 0d ago📂 Card💰 Free📺 Ad-supported💎 IAP $1.99 - $29.99 per item
📅
What Worked™ · Development Pipeline
2 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 →
2026-06
🔧
Shipped update — v2.2.9.1830 → v2.3.1.1845
→ 30 days after: reviews +898 medium · co-occurring
2026-05
🚀
First tracked snapshot — initial data captured
→ 30 days after: reviews +898 high confidence
🧪
Tech & Domain Intel — mobilityware.com
- Tech stack
- Apple Pay / Sign in with Apple · Atlassian (Jira/Confluence) · Google Workspace · SendGrid · AWS SES
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Castle Solitaire: Card Game: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by MobilityWare
View all →📦 Portfolio summaryINDIE studio
23apps·$33K/mocombined
✓ Diversified — top app contributes 16%; risk spread across portfolio
About this analysis
Why high confidence: 100,928 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Castle Solitaire make per month?▴
Based on our ML-calibrated revenue forecast, Castle Solitaire earns approximately $1.3K/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 Castle Solitaire?▴
Browse the full Card 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 Castle Solitaire?▴
Castle Solitaire is published by MobilityWare 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 Castle Solitaire's BU Score?▴
Castle Solitaire has a BU Score of 77/100 (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.