81Dojo (World Online Shogi)
62
Quality Score
Solid
81Dojo (World Online Shogi)
Medium confidence
✍️ bumetric analysis
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81Dojo (World Online Shogi) is an Android app from 81Dojo in the Board category, currently rated 4.6★ across 2,205 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 62: Solid (established niche player). For a Board 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
$568
per month
→
12-mo forecast
$497 – $1791
per month
→
24-mo forecast
$460 – $4144
per month
INDIE 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
$115K
↳ What it cost to build · not monthly revenue
Likely range $85K – $155K
$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 |
| ⚙ Board complexity ×1.50 | +$25K |
| 🌐 Cross-platform reach (iOS + Android) | +$41K |
Total estimate
$115K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$10K
↳ What it would sell for · not monthly revenue
Marketplace range $5K – $10K · 14× MRR multiple
💸
~0.1× 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 |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Board category multiple | -12% |
Final multiple
14× MRR
👥 Estimated audience size
305K
Lifetime downloads (US-equivalent)
Monthly active
30K
Daily active
7.6K
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
| 📲 Board engagement | ~140 installs / rating |
| 🔁 Board D30 retention | 10% |
| 📍 DAU / MAU stickiness | 0.25 |
DAU / MAU
25% 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 | Board |
| 📦 Tiny game bundle | → Native 2D engine |
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$568/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$484 – $1.1K
12 months
$497 – $1.8K
24 months
$460 – $4.1K
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
Early-stage solo · 40/100INDIE TIERexpected for tierGrowth Velocity
5.0
Founder Strength
3.8
Product Quality
7.7
Revenue Strength
2.8
Monetization Maturity
1.0
Defensibility
2.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Marginal — $227 - $1421/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.3★ across 1,315 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: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $10K-$18K.
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:
| Excellent rating (4.6★)METRIC | +$2,200 | |
| Low install base (2,205 ratings)METRIC | +$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| 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
- 81Dojo (World Online Shogi)
- Developer
- 81Dojo
- Bundle ID
- air.air.A81DojoMobile
- App Store URL
- Open in App Store
- Category
- Board
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- 81dojo.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
- $569/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.
📈Ratings growth2,205 ratings+24% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (36 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
This app is the smartphone version of the online shogi site "81Dojo" (http://81dojo.com) under the patronage of the Japan Shogi Association.
81Dojo is characterized by its unique and advanced functionalities such as the interactive post-game analysis support, very real playing environment including professional byoyomi voice, and the internationalization. Most of those functionalities are copied to this app. 81Dojo stays with you all the time, while you take it with your smartphone to anywhere you go to. Why not take a little break and enjoy some short games at 81Dojo?… View full description on the official store →
81Dojo is characterized by its unique and advanced functionalities such as the interactive post-game analysis support, very real playing environment including professional byoyomi voice, and the internationalization. Most of those functionalities are copied to this app. 81Dojo stays with you all the time, while you take it with your smartphone to anywhere you go to. Why not take a little break and enjoy some short games at 81Dojo?… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.4.7🔄 updated 0d ago📂 Board💰 Free
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for 81Dojo (World Online Shogi): category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 2,205 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does 81Dojo (World Online Shogi) make per month?▴
Based on our ML-calibrated revenue forecast, 81Dojo (World Online Shogi) earns approximately $568/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 81Dojo (World Online Shogi)?▴
Browse the full Board 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 81Dojo (World Online Shogi)?▴
81Dojo (World Online Shogi) is published by 81Dojo 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 81Dojo (World Online Shogi)'s BU Score?▴
81Dojo (World Online Shogi) 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.