Bootspruefung.de
70
Quality Score
Strong
✍️ Bumetric analysis
“
Bootspruefung.de is an iOS app from Bootspruefung.de in the News category, currently rated 4.9★ across 17,099 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Quality Score is 70: Strong (healthy traction). For a News 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.
💰 Monthly revenue · now vs forecast
● Right now
$18.9K
per month
→
12-mo forecast
$19.6K – $41.0K
per month
→
24-mo forecast
$24.3K – $72.8K
per month
MID tierFREE
💡 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
2 snapshots on record
Rating
4.9
Reviews
17,099 reviews
Forecast Revenue / mo
$18.9K
Snapshots tracked
2
since Mar 2026
🤖Also on Android
—/mo · no ratings
View →
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
📈
Pays back in ~6 months 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 |
| ⚙ News complexity ×1.20 | +$10K |
| ⚙ 9.1y maintenance × ~1-person team | +$54K |
Total estimate
$115K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$375K
↳ What it would sell for · not monthly revenue
Marketplace range $275K – $475K · 20× MRR multiple
💸
~3.3× 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 |
| 📅 9.1y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 News category multiple | -5% |
Final multiple
20× MRR
👥 Estimated audience size
1.4M
Lifetime downloads (US-equivalent)
Monthly active
120K
Daily active
54K
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
| 📲 News engagement | ~120 installs / rating |
| 📅 9.1y of rating accumulation | -30% |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
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 | 26 MB |
| 🏷 Category context | News |
| 📦 Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Active
5%
Last shipped 2026-08-27 · 30 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
| 📅 30 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$18.9K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$18.0K – $29.9K
12 months
$19.6K – $41.0K
24 months
$24.3K – $72.8K
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
Below median · 51/100MID TIERFREE (NO MONETIZATION)underperforming peersGrowth Velocity
5.0
Founder Strength
3.7
Product Quality
9.3
Revenue Strength
4.3
Monetization Maturity
0.5
Defensibility
5.8
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $13K - $28K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.9★ across 17,099 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 = $340K-$605K.
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (17,099 ratings)METRIC | +$5,500 | |
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.9★)METRIC | +$2,200 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 |
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 · v7.6.0
Auch Version 7.6.0 enthält KOSTENLOS alle aktuellen Prüfungsfragen für SBF-Binnen, SBF-See, Bodenseeschifferpatent, SRC, LRC, UBI und FKN.
Neu in dieser Version: der UBI-Fragenkatalog 2026 mit aktualisiertem Lehrbuch für die neuen Inhalte.… Full release notes →
Neu in dieser Version: der UBI-Fragenkatalog 2026 mit aktualisiertem Lehrbuch für die neuen Inhalte.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Bootspruefung.de
- Developer
- Bootspruefung.de
- Bundle ID
- Not found
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 4+
- Languages
- DE
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
- $18.9K/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.
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
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
Alle amtlichen Prüfungsfragen zum Bootsführerschein – kostenlos, werbefrei und 1:1 wie beim Prüfungsamt. Bootspruefung.de hat seit 2013 über 800.000 Kunden erfolgreich durch die theoretischen Boots- und Funkprüfungen gebracht.
• Lernen Sie KOSTENLOS mit allen originalen, amtlichen Prüfungsfragen für den SBF-Binnen, den SBF-See, das Bodenseeschifferpatent, das UBI, das SRC, das LRC und den Pyroschein (FKN). Die Fragebogen in der App entsprechen 1:1 den amtlichen Prüfungsfragebogen, wie sie in der Prüfung beim Prüfungsamt abgefragt werden.… View full description on the official store →
• Lernen Sie KOSTENLOS mit allen originalen, amtlichen Prüfungsfragen für den SBF-Binnen, den SBF-See, das Bodenseeschifferpatent, das UBI, das SRC, das LRC und den Pyroschein (FKN). Die Fragebogen in der App entsprechen 1:1 den amtlichen Prüfungsfragebogen, wie sie in der Prüfung beim Prüfungsamt abgefragt werden.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 26 MB🔞 4+📱 iOS 15.5+🔖 v7.6.0🔄 updated 1mo ago🌐 DE📂 News💰 Paid🚀 Launched 2017 (9y 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 →
2026-09
🔄
Monetization changed: paid → free
2026-03
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 50 reviews across 1 markets● 22% positive · ● 34% neutral · ● 44% negative · Rating drift: -0.24★ (declining — recent 50: 4.66★ vs lifetime: 4.9★)
Top praise themes
die prüfung ×7 mit der ×7 ich habe ×7 auf die ×5 sehr gute ×5 zum lernen ×5 habe ich ×5 die ist ×4
Top complaint themes
der ×4 mit ×3
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 0★ | 0 | — |
| 🇩🇪 DE | 4.88209★ | 18,319 | 4.88209★ this version |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇬🇧 GB | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇺🇸 US | 5★ | 1 | 5★ this version |
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Bootspruefung.de: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Bootspruefung.de
View all →📦 Portfolio summaryINDIE studio
2apps·$19K/mocombined
⚠ Concentrated — top app contributes 99% of combined revenue (single-app dependency)
About this analysis
Why high confidence: 17,099 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Bootspruefung.de make per month?▴
Based on our ML-calibrated revenue forecast, Bootspruefung.de earns approximately $18K/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 Bootspruefung.de profitable?▴
With estimated build cost $115K and monthly revenue $18K, Bootspruefung.de looks profitable — pays back its estimated build cost in roughly 6 months 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 Bootspruefung.de have?▴
Estimated audience: ~1.4M lifetime downloads, ~120K monthly active users, and ~54K 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 Bootspruefung.de?▴
Browse the full News 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 Bootspruefung.de built with?▴
Our heuristic places Bootspruefung.de on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is Bootspruefung.de still actively maintained?▴
Maintenance status: Active (5% 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 Bootspruefung.de sell for?▴
Estimated acquisition value: $375K (marketplace range $275K – $475K). Calculated as 20× 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 Bootspruefung.de last updated?▴
Bootspruefung.de last shipped a new version on 2026-08-27 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Bootspruefung.de?▴
Bootspruefung.de is published by Bootspruefung.de 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 Bootspruefung.de's BU Score?▴
Bootspruefung.de has a BU Score of 70/100 (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.