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謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出

0
Quality Score
Niche

謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出

Low confidence
✍️ Editor
✍️ bumetric analysis

謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出 is an Android app from Jammsworks Inc., currently rated across few ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 0: Niche (micro-niche or pre-traction stage). For an app like this, that means micro-niche or pre-traction stage. 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
$500
per month
12-mo forecast
$437 – $1575
per month
24-mo forecast
$405 – $3644
per month
INDIE 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
ONE-TIME · BUILD 💰 Estimated build cost
$80K
What it cost to build · not monthly revenue
Likely range $60K – $110K
$25K · MVP floor $100K · indie scale $500K+ · studio build

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
🌐 Cross-platform reach (iOS + Android) +$27K
Total estimate $80K
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
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 category
📦 Compact Android bundle → Native Kotlin
🔬

How we forecast this revenue

LOW CONFIDENCE
Baseline
$500/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$426 – $993
12 months
$437 – $1.6K
24 months
$405 – $3.6K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊

BU Investment Matrix

Pre-traction · 34/100INDIE TIERlimited signal
GrowthFounderQualityRevenueMonetiz.MoatMarketSafety
Growth Velocity
5.0
Founder Strength
6.2
Product Quality
0.0
Revenue Strength
2.7
Monetization Maturity
1.0
Defensibility
5.0
Market Position
0.0
Operational Safety
7.0
  • 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
  • ⭐ Quality: None★ across 0 reviews — weak — significant quality concerns.
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: ⚠ last update 1662d ago — possibly dormant.
  • ⚠️ Risk: Moderate — dormant (1662d 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 = $9K-$16K. Portfolio play ($5K/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

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.

📈 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
謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出
Developer
Jammsworks Inc.
Bundle ID
org.cocos2dx.IslandMystery
App Store URL
Not found
Category
Not found
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

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
Not found
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

< 遊び方 >
島にある問題を全て正解して次の島に進みましょう。
島を移動する時に問題が出題されます。その問題に正解すると次の島に進めます。
謎を解いて無事故郷に帰ることができればクリアです

1.問題は合計100問以上
島を進むごとに問題が難しくなっていきます。
全ての謎を解いて、ストーリーを完結させましょう。

2.問題に見事正解すると手紙から「キーワード」と「ポイント」が受け取れます。
ポイントはヒントを解放させるときに使い、キーワードは次の島へ進む手がかりになります。

3.問題がわからないときはヒントを積極的に活用しましょう。

4.ヒントを見てもわからないときはシェアして、解ける人を探してみましょう。

5.それでもわからないときにはギブアップボタンで答えを表示させましょう。

6.前の問題が解きたいときは「島を選択」で前の島に戻れます。
 ※まだ到達していない島は選択できません。

※機種によっては回答が認識されない場合があります。
申し訳ありませんが「漢字」「ひらがな」「カタカナ」等お試しください。

※このアプリは 謎解き ~地下に眠る煩悩の財宝~ の続編となっております。
前作をプレイしていない方でもストーリーがわかる内容となっていますので、ご安心ください。… View full description on the official store →
App Specs
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🔖 v1.2.0🔄 updated 0d ago💰 Free / Ads / IAP
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📝 Description

95
BU Score · Transcendent

More by Jammsworks Inc.

View all →
📦 Portfolio summaryINDIE studio
45apps·$5K/mocombined
✓ Diversified — top app contributes 6%; risk spread across portfolio
About this analysis
ZCAnalyzed by Zakhar Chumak · founder, bumetric·Full methodology·Low confidence

Why low confidence: only 0 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.

📌 Final verdict — read this before you trust the numbers above

謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出 is a very early-stage Android app with weak public traction — only 0 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.

Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.

Frequently Asked Questions

1 answers · auto-generated from this app's public data
Who makes 謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出?
謎解き 〜孤島に秘めし9つの手紙〜 孤島からの脱出 is published by Jammsworks Inc. 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.