72
Quality Score
Strong
Mystic Diary 2 - Hidden Object
✍️ bumetric analysis
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Mystic Diary 2 - Hidden Object is an Android app from SunRay Games in the Adventure category, currently rated 4.4★ across 41,299 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 72: Strong (healthy traction). For a Adventure 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.
💰 Revenue · today and ahead
Today
$700K/mo
In 12 months
$741K – $1141K
In 24 months
$886K – $1645K
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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$265K
↳ What it cost to build · not monthly revenue
Likely range $200K – $360K
$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 |
| ⚙Adventure complexity ×2.10 | +$65K |
| 🌐Cross-platform reach (iOS + Android) | +$68K |
| ⚙12.1y maintenance × ~1-person team | +$72K |
Total estimate$265K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$50K
↳ What it would sell for · not monthly revenue
Marketplace range $35K – $75K · 29× 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 |
| 📅12.1y proven track record | +20% |
| 🏷Adventure category multiple | -15% |
Final multiple29× MRR
👥 Estimated audience size
4.0M
Lifetime downloads (US-equivalent)
Monthly active
185K
Daily active
55K
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
| 📲Adventure engagement | ~140 installs / rating |
| 📅12.1y of rating accumulation | -30% |
| 🔁Adventure D30 retention | 12% |
| 📍DAU / MAU stickiness | 0.30 |
DAU / MAU30% 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 | Adventure |
| 📦Tiny game bundle | → Native 2D engine |
💀 Maintenance status
Likely abandoned
93%
Last shipped 2022-08-26 · 1366 days ago
0 · Active50 · At risk100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅3y+ since last update | Likely abandoned |
| •12y old + 1y+ no update | +5% (API deprecation drift) |
VerdictLikely abandoned
🔬
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 cautiousRevenue Strength
5.8
Product Quality
8.7
Market Position
0.0
Growth Velocity
5.0
Defensibility
10.0
Operational Safety
7.0
Founder Strength
6.8
Monetization Maturity
5.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.37★ across 41,299 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 1366d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (1366d since update).
🎯 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:
| Mid install base (41,299 ratings)METRIC | +$5,500 | |
| Mature app (12y old)METRIC | +$1,500 | |
| Good rating (4.4★)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.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.0.60🔄 updated 3y ago📂 Adventure💰 Free📺 Ad-supported💎 IAP $1.99 per item🚀 Launched 2014 (12y old)
📝 About this app
SunRay Games presents the sequel: "Mystic Diary: Haunted Island"!
♥ Play one of the BEST FREE adventure Hidden Object games EVER ♥
Stop a magician’s ghost and free the trapped souls haunting the Black Woods in Mystic Diary: Haunted Island! Communicate with a trapped ghost, the magician’s very own brother, as he guides you through a quest. Follow Victor’s clues and stop the disturbed Gustav as quickly as you can! Solve cryptic puzzles and put together bizarre machines to unlock the secrets of the house in this incredible Hidden Object Puzzle Adventure game!… View full description on the official store →
♥ Play one of the BEST FREE adventure Hidden Object games EVER ♥
Stop a magician’s ghost and free the trapped souls haunting the Black Woods in Mystic Diary: Haunted Island! Communicate with a trapped ghost, the magician’s very own brother, as he guides you through a quest. Follow Victor’s clues and stop the disturbed Gustav as quickly as you can! Solve cryptic puzzles and put together bizarre machines to unlock the secrets of the house in this incredible Hidden Object Puzzle Adventure game!… View full description on the official store →
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Mystic Diary 2 - Hidden Object
- Developer
- SunRay Games
- Bundle ID
- com.sunraygames.md2hifree
- App Store URL
- Open in App Store
- Category
- Adventure
- 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
- $1.7K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $1.99 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 growth41,299 ratings+43% 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.
More by SunRay Games
View all →📦 Portfolio summaryINDIE studio
11apps·$22K/mocombined
✓ Diversified — top app contributes 23%; risk spread across portfolio
Full revenue analysis
Read the article-style breakdown for Mystic Diary 2 - Hidden Object: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Mystic Diary 2 - Hidden Object make per month?▾
Based on our ML-calibrated revenue forecast, Mystic Diary 2 - Hidden Object earns approximately $1K/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.
Is Mystic Diary 2 - Hidden Object profitable?▾
With estimated build cost $265K and monthly revenue $1K, Mystic Diary 2 - Hidden Object looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Mystic Diary 2 - Hidden Object have?▾
Estimated audience: ~4.0M lifetime downloads, ~185K monthly active users, and ~55K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Mystic Diary 2 - Hidden Object?▾
Browse the full Adventure 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.
What is Mystic Diary 2 - Hidden Object built with?▾
Our heuristic places Mystic Diary 2 - Hidden Object on the Native Android (Kotlin) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Mystic Diary 2 - Hidden Object still actively maintained?▾
Maintenance status: Likely abandoned (93% abandonment risk). Last shipped version was 3+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Mystic Diary 2 - Hidden Object sell for?▾
Estimated acquisition value: $50K (marketplace range $35K – $75K). Calculated as 29× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Mystic Diary 2 - Hidden Object last updated?▾
Mystic Diary 2 - Hidden Object last shipped a new version on 2022-08-26 — more than 3 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Mystic Diary 2 - Hidden Object?▾
Mystic Diary 2 - Hidden Object is published by SunRay Games 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 Mystic Diary 2 - Hidden Object's BU Score?▾
Mystic Diary 2 - Hidden Object has a BU Score of 72/100 (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.