Rock Identifier: Gesteins
81
Quality Score
Excellent
✍️ Bumetric analysis
“
Rock Identifier: Gesteins is an iOS app from Next Vision Limited in the Education category, currently rated 4.7★ across 71,031 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 81: Excellent (strong product-market fit). For a Education app, that means strong product-market fit. 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
533 snapshots on record
Rating
4.7
Reviews
71,031 reviews
Forecast Revenue / mo
$700K
Snapshots tracked
533
since Aug 2025
ONE-TIME · BUILD
💰 Estimated build cost
$145K
↳ What it cost to build · not monthly revenue
Likely range $110K – $195K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in under a month at current MRR
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 |
| 📦 Asset bundle (198 MB) | +$40K |
| ⚙ Education complexity ×1.20 | +$18K |
| ⚙ 5.7y maintenance × ~1-person team | +$34K |
Total estimate
$145K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$14.5M
↳ What it would sell for · not monthly revenue
Marketplace range $11.0M – $19.0M · 21× MRR multiple
💸
~100× return on build cost
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 |
| 📅 5.7y proven track record | +20% |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Education category multiple | +6% |
Final multiple
21× MRR
👥 Estimated audience size
4.3M
Lifetime downloads (US-equivalent)
Monthly active
600K
Daily active
180K
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
| 📲 Education engagement | ~85 installs / rating |
| 📅 5.7y of rating accumulation | -28% |
| 🔁 Education D30 retention | 18% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
30% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 60%
Also possible
React Native
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
| 📦 App bundle size | 198 MB |
| 🏷 Category context | Education |
| 📦 Mid-large iOS bundle | → Likely native SwiftUI (post-2020 era) |
💀 Maintenance status
Active
15%
Last shipped 2026-08-26 · 32 days ago
0 · Active
50 · At risk
100 · 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
| 📅 32 days since last update | Healthy release cadence |
Verdict
Active
🔬
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 cautiousRevenue Strength
5.8
Product Quality
9.3
Market Position
2.0
Growth Velocity
5.0
Defensibility
6.4
Operational Safety
10.0
Founder Strength
7.9
Monetization Maturity
1.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.67★ across 71,031 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: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 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 15 of 15 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (71,031 ratings)METRIC | +$5,500 | |
| Paid app ($0.00)METRIC | +$2,800 | |
| subscriptionREVIEW | +$2,500 | |
| premiumREVIEW | +$2,200 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| Multilingual (14 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| free trialREVIEW | +$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| Established app (5y old)METRIC | +$800 |
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.
🆕 What's New · v2.22.0
A few minor bugs have been fixed for smoother user experience.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Rock Identifier: Gesteins
- Developer
- Next Vision Limited
- Bundle ID
- com.picturerock.rock
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- AR, NL, EN, FR, DE, IT, JA, KO, PT, RU, ZH, ES, ZH, TR
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $700K/mo
- Top-grossing rank
- 🇺🇸#26 /100 🇨🇦#30 /100 🇦🇺#35 /100 🇬🇧#46 /100 🇩🇪#68 /100 🇫🇷#83 /100 🇯🇵#88 /100
- 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 growth79,483 ratings+16669% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (0 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Top Countries — Grossing Rank8 countries
🇺🇸US#26 /100
🇨🇦CA#30 /100
🇦🇺AU#35 /100
🇬🇧GB#46 /100
🇩🇪DE#68 /100
🇫🇷FR#83 /100
🇯🇵JP#88 /100
🇧🇷BR#90 /100
📊Category Rank Trajectory#26 now · best #26 · worst #27
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Update Frequency · Releases per Quarter4 releases tracked
🚀Version Release Timeline4 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
Rock Identifier is an all-in-one stone, crystal, mineral, and gemstone identifier. Simply take or upload a photo of a rock or crystal, and the app will tell you all about it in seconds.
Want to know the name of a stone you discovered in your rock hounding? Are you curious about the different properties of each stone and crystal you own? Looking to learn about rock and crystal knowledge? Don't miss this powerful stone identifier and crystal guidebook. We will satisfy all your needs!
Rock & Mineral & Crystal Identifier… View full description on the official store →
Want to know the name of a stone you discovered in your rock hounding? Are you curious about the different properties of each stone and crystal you own? Looking to learn about rock and crystal knowledge? Don't miss this powerful stone identifier and crystal guidebook. We will satisfy all your needs!
Rock & Mineral & Crystal Identifier… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 198 MB🔞 4+📱 iOS 15.0+🔖 v2.22.0🔄 updated 1mo ago🌐 AR, NL, EN, FR, DE +9📂 Education💰 Paid🚀 Launched 2021 (5y old)
📅
What Worked™ · Development Pipeline
14 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 →
2026-08
🔧
Shipped update — v2.21.0 → v2.22.0
→ 30 days after: reviews +2,526 high confidence
2026-07
🔧
Shipped update — v2.20.0 → v2.21.0
→ 30 days after: revenue +$33.9K/mo · reviews +2,778 high confidence
2026-06
🔧
Shipped update — v2.19.2 → v2.20.0
→ 30 days after: revenue +$33.9K/mo · reviews +3,480 high confidence
2026-05
⭐
Rating ↑ 3.75 → 4.67 (improved 0.92★)
→ 30 days after: reviews +1,065 high confidence
2026-05
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +1,065 high confidence
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$330/mo · reviews +11 medium · co-occurring
2026-03
⭐
Rating ↑ 3.75 → 4.60 (improved 0.85★)
→ 30 days after: revenue +$563/mo · reviews +19 medium · co-occurring
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$563/mo · reviews +19 medium · co-occurring
2025-09
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$2.9K/mo · rating +0.13★ · reviews +100 high confidence
2025-08
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$3.1K/mo · reviews +108 high confidence
2025-08
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$2.8K/mo · rating −1.37★ · reviews +97 medium · co-occurring
2025-08
⭐
Rating ↓ 4.00 → 3.67 (dropped 0.33★)
→ 30 days after: revenue +$2.8K/mo · rating −1.37★ · reviews +97 medium · co-occurring
2025-08
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
→ 30 days after: revenue +$2.7K/mo · rating −1.40★ · reviews +94 low · multiple changes
2025-08
🚀
First tracked snapshot — initial data captured
→ 30 days after: revenue +$2.6K/mo · rating −1.39★ · reviews +92 low · multiple changes
🌍
Multi-Country Performance
Available in 8 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.65461★ | 80,725 | 4.65461★ this version |
| 🇬🇧 GB | 4.58467★ | 8,049 | 4.58467★ this version |
| 🇩🇪 DE | 4.5465★ | 3,182 | 4.5465★ this version |
| 🇫🇷 FR | 4.58312★ | 3,356 | 4.58312★ this version |
| 🇯🇵 JP | 4.31988★ | 1,610 | 4.31988★ this version |
| 🇨🇦 CA | 4.55349★ | 8,804 | 4.55349★ this version |
| 🇦🇺 AU | 4.5387★ | 3,811 | 4.5387★ this version |
| 🇧🇷 BR | 4.77382★ | 3,086 | 4.77382★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Rock Identifier: Gesteins: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Next Vision Limited
View all →📦 Portfolio summaryBIG studio
13apps·$6.6M/mocombined
✓ Diversified — top app contributes 18%; risk spread across portfolio
About this analysis
Why high confidence: 71,031 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Rock Identifier make per month?▴
Based on our ML-calibrated revenue forecast, Rock Identifier earns approximately $700K/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 Rock Identifier profitable?▴
With estimated build cost $145K and monthly revenue $700K, Rock Identifier looks highly profitable — pays back its build investment in under a month at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Rock Identifier have?▴
Estimated audience: ~4.3M lifetime downloads, ~600K monthly active users, and ~180K 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 Rock Identifier?▴
Browse the full Education 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 Rock Identifier built with?▴
Our heuristic places Rock Identifier on the Native iOS (SwiftUI) stack (Medium confidence, 60%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is Rock Identifier still actively maintained?▴
Maintenance status: Active (15% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Rock Identifier sell for?▴
Estimated acquisition value: $14.5M (marketplace range $11.0M – $19.0M). Calculated as 21× 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 Rock Identifier last updated?▴
Rock Identifier last shipped a new version on 2026-08-26 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Rock Identifier?▴
Rock Identifier is published by Next Vision Limited on the Apple App 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 Rock Identifier's BU Score?▴
Rock Identifier has a BU Score of 81/100 (Excellent). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.