Police Siren SOS
59
Quality Score
Solid
✍️ Bumetric analysis
“
Police Siren SOS is an Android app from SMARTWHO in the Entertainment category, currently rated 4.2★ across 2,249 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 59: Solid (established niche player). For a Entertainment 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID 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
5 snapshots on record
Rating
4.2
Reviews
2,249 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
5
since May 2026
ONE-TIME · BUILD
💰 Estimated build cost
$215K
↳ What it cost to build · not monthly revenue
Likely range $160K – $290K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~3.6y 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 |
| 💎 In-app purchase plumbing | +$9K |
| ⚙ Entertainment complexity ×1.30 | +$17K |
| 🌐 Cross-platform reach (iOS + Android) | +$42K |
| ⚙ 16.1y maintenance × ~1-person team | +$96K |
Total estimate
$215K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$150K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $200K · 32× MRR multiple
💸
~0.7× 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 |
| 📅 16.1y proven track record | +20% |
| 🏷 Entertainment category multiple | -5% |
Final multiple
32× MRR
👥 Estimated audience size
235K
Lifetime downloads (US-equivalent)
Monthly active
5.6K
Daily active
2.2K
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
| 📲 Entertainment engagement | ~150 installs / rating |
| 📅 16.1y of rating accumulation | -30% |
| 🔁 Entertainment D30 retention | 12% |
| 📍 DAU / MAU stickiness | 0.40 |
DAU / MAU
39% sticky
🛠 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 | Entertainment |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Active
15%
Last shipped 2026-07-02 · 88 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
| 📅 88 days since last update | Healthy release cadence |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Building · 59/100MID TIERcompetitive build-outGrowth Velocity
5.0
Founder Strength
5.9
Product Quality
7.7
Revenue Strength
3.7
Monetization Maturity
5.0
Defensibility
10.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.25★ across 2,249 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: 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 = $90K-$160K.
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:
| Low install base (2,249 ratings)METRIC | +$1,500 | |
| Mature app (16y old)METRIC | +$1,500 | |
| Good rating (4.2★)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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Police Siren SOS
- Developer
- SMARTWHO
- Bundle ID
- com.james.PoliceSiren
- App Store URL
- Open in App Store
- Category
- Entertainment
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- smartwho.net
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $5.0K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.79 - $4.99 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.
🚀Update Frequency · Releases per Quarter2 releases tracked
🚀Version Release Timeline2 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
Police Siren SOS is the ultimate personal safety utility — an all-in-one toolkit to draw attention and stay prepared.
One tap triggers a police siren, flashes SOS Morse code, shows emergency numbers for 63 countries, or sends your GPS location to loved ones. 24 siren sounds, 50 visual effects, 12 one-touch presets — far beyond a simple siren simulator.
★ SIREN AND EFFECTS
• 24 Siren Sounds: Police, ambulance, fire truck, alarm, horn, and more.
• 50 Visual Effects: Strobe, pulse, sweep, spiral, chase, storm, dual-color, and more.… View full description on the official store →
One tap triggers a police siren, flashes SOS Morse code, shows emergency numbers for 63 countries, or sends your GPS location to loved ones. 24 siren sounds, 50 visual effects, 12 one-touch presets — far beyond a simple siren simulator.
★ SIREN AND EFFECTS
• 24 Siren Sounds: Police, ambulance, fire truck, alarm, horn, and more.
• 50 Visual Effects: Strobe, pulse, sweep, spiral, chase, storm, dual-color, and more.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v3.3.2🔄 updated 2mo ago📂 Entertainment💰 Free📺 Ad-supported💎 IAP $0.79 - $4.99 per item🚀 Launched 2010 (16y old)
📅
What Worked™ · Development Pipeline
2 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 →
2026-07
🔧
Shipped update — v3.2.1 → v3.3.2
→ 30 days after: reviews +56 high confidence
2026-05
🚀
First tracked snapshot — initial data captured
→ 30 days after: rating −0.06★ · reviews +34 high confidence
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Police Siren SOS: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by SMARTWHO
View all →📦 Portfolio summaryBIG studio
10apps·$5.0M/mocombined
✓ Diversified — top app contributes 40%; risk spread across portfolio
About this analysis
Why medium confidence: 2,249 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Police Siren SOS make per month?▴
Based on our ML-calibrated revenue forecast, Police Siren SOS earns approximately $5.0K/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 Police Siren SOS profitable?▴
With estimated build cost $215K and monthly revenue $5.0K, Police Siren SOS looks slow ROI — payback period is around 3.6 years 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 Police Siren SOS have?▴
Estimated audience: ~235K lifetime downloads, ~5K monthly active users, and ~2K 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 Police Siren SOS?▴
Browse the full Entertainment 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 Police Siren SOS built with?▴
Our heuristic places Police Siren SOS on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Police Siren SOS still actively maintained?▴
Maintenance status: Active (15% abandonment risk). Last shipped version was 2 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Police Siren SOS sell for?▴
Estimated acquisition value: $150K (marketplace range $125K – $200K). Calculated as 32× 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 Police Siren SOS last updated?▴
Police Siren SOS last shipped a new version on 2026-07-02 — 2 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Police Siren SOS?▴
Police Siren SOS is published by SMARTWHO 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 Police Siren SOS's BU Score?▴
Police Siren SOS has a BU Score of 59/100 (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.