71
Quality Score
Strong
Stonies
✍️ bumetric analysis
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Stonies is an Android app from upjers GmbH in the Simulation category, currently rated 4.3★ across 42,376 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 71: Strong (healthy traction). For a Simulation 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
$240K
↳ What it cost to build · not monthly revenue
Likely range $180K – $325K
$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 |
| ⚙Simulation complexity ×2.00 | +$59K |
| 🌐Cross-platform reach (iOS + Android) | +$65K |
| ⚙9.3y maintenance × ~1-person team | +$55K |
Total estimate$240K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$50K
↳ What it would sell for · not monthly revenue
Marketplace range $40K – $75K · 30× 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 |
| 📅9.3y proven track record | +20% |
| 🏷Simulation category multiple | -10% |
Final multiple30× MRR
👥 Estimated audience size
4.2M
Lifetime downloads (US-equivalent)
Monthly active
345K
Daily active
100K
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
| 📲Simulation engagement | ~140 installs / rating |
| 📅9.3y of rating accumulation | -30% |
| 🔁Simulation D30 retention | 15% |
| 📍DAU / MAU stickiness | 0.30 |
DAU / MAU29% 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 | Simulation |
| 📦Tiny game bundle | → Native 2D engine |
💀 Maintenance status
Likely abandoned
72%
Last shipped 2024-07-16 · 676 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
| 📅1y 10mo since last update | Likely deprioritized |
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 · 59/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
6.8
Product Quality
8.6
Revenue Strength
5.8
Monetization Maturity
4.0
Defensibility
9.8
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.3★ across 42,376 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 673d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (673d 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 (42,376 ratings)METRIC | +$5,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Good rating (4.3★)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 →🔖 v1.55.2🔄 updated 1y ago📂 Simulation💰 Free💎 IAP $0.99 - $109.99 per item🚀 Launched 2017 (9y old)
📝 About this app
Stonies – Your Prehistoric Stone Age Game Adventure! ⛏️
Step into the fascinating world of Stonies, a unique Stone Age game where you guide your own prehistoric tribe through the challenges of early human life. As the leader of your Stone Age clan, teach your people how to hunt, make fire, and craft tools – everything they need to survive in the wild world of the past!
Build a thriving Stone Age village, develop your tribe members, and lead them from primitive cavemen to skilled settlers in this engaging simulation game.
🔍 Highlights:… View full description on the official store →
Step into the fascinating world of Stonies, a unique Stone Age game where you guide your own prehistoric tribe through the challenges of early human life. As the leader of your Stone Age clan, teach your people how to hunt, make fire, and craft tools – everything they need to survive in the wild world of the past!
Build a thriving Stone Age village, develop your tribe members, and lead them from primitive cavemen to skilled settlers in this engaging simulation game.
🔍 Highlights:… View full description on the official store →
🧪
Tech & Domain Intel — upjers.com
- Tech stack
- Google Workspace · AWS SES
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Stonies
- Developer
- upjers GmbH
- Bundle ID
- com.upjers.stonies
- App Store URL
- Open in App Store
- Category
- Simulation
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- upjers.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
- $1.7K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $109.99 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 growth42,376 ratings+28% 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 upjers GmbH
View all →📦 Portfolio summaryINDIE studio
17apps·$18K/mocombined
✓ Diversified — top app contributes 17%; risk spread across portfolio
Full revenue analysis
Read the article-style breakdown for Stonies: 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 Stonies make per month?▾
Based on our ML-calibrated revenue forecast, Stonies 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 Stonies profitable?▾
With estimated build cost $240K and monthly revenue $1K, Stonies 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 Stonies have?▾
Estimated audience: ~4.2M lifetime downloads, ~345K monthly active users, and ~100K 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 Stonies?▾
Browse the full Simulation 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 Stonies built with?▾
Our heuristic places Stonies 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 Stonies still actively maintained?▾
Maintenance status: Likely abandoned (72% abandonment risk). Last shipped version was 1+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Stonies sell for?▾
Estimated acquisition value: $50K (marketplace range $40K – $75K). Calculated as 30× 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 Stonies last updated?▾
Stonies last shipped a new version on 2024-07-16 — more than 1 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Stonies?▾
Stonies is published by upjers GmbH 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 Stonies's BU Score?▾
Stonies has a BU Score of 71/100 (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.