56
Quality Score
Solid
Dart Pro Training Sheet
Medium confidence
✍️ bumetric analysis
“
Dart Pro Training Sheet is an Android app from Niko Börger in the Sports category, currently rated 4.2★ across 606 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 56: Solid (established niche player). For a Sports 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
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO 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
$210K
↳ What it cost to build · not monthly revenue
Likely range $160K – $285K
$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 |
| ⚙Sports complexity ×1.90 | +$53K |
| 🌐Cross-platform reach (iOS + Android) | +$62K |
| ⚙6.2y maintenance × ~1-person team | +$36K |
Total estimate$210K
👥 Estimated audience size
76K
Lifetime downloads (US-equivalent)
Monthly active
5.7K
Daily active
1.7K
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
| 📲Sports engagement | ~180 installs / rating |
| 📅6.2y of rating accumulation | -30% |
| 🔁Sports D30 retention | 10% |
| 📍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 | Sports |
| 📦Tiny game bundle | → Native 2D engine |
💀 Maintenance status
At risk
50%
Last shipped 2025-07-02 · 326 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
| 📅10 months since last update | Concerning gap |
VerdictAt risk
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 38/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
3.6
Product Quality
6.6
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
2.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.7★ across 289 reviews — solid.
- 📍 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 = $3K-$6K. Portfolio play ($365/mo combined) commands premium.
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:
| Good rating (4.2★)METRIC | +$800 | |
| Established app (6y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (606 ratings)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.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.6.8🔄 updated 10mo ago📂 Sports💰 Free📺 Ad-supported💎 IAP $7.19 per item🚀 Launched 2020 (6y old)
📝 About this app
You can't motivate yourself to practice alone? You don’t know what dart training games to play? You're tired of dart games that end in 5 minutes? You're in the right place!
The Dart Pro Training Sheet guides you through a total of eight useful training games for around 40 - 50 minutes total in duration. The end results of your training are then summarized in a clear, overall point score, giving you a goal to beat next time. Having this specific score enables you to focus on your own individual improvement and compare your skill level with friends.… View full description on the official store →
The Dart Pro Training Sheet guides you through a total of eight useful training games for around 40 - 50 minutes total in duration. The end results of your training are then summarized in a clear, overall point score, giving you a goal to beat next time. Having this specific score enables you to focus on your own individual improvement and compare your skill level with friends.… 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
- Dart Pro Training Sheet
- Developer
- Niko Börger
- Bundle ID
- de.nikoboerger.darttraining
- App Store URL
- Open in App Store
- Category
- Sports
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- dart-pro-training-sheet.s3-website.eu-central-1.amazonaws.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
- $366/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $7.19 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 growth606 ratings+73% 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.
Full revenue analysis
Read the article-style breakdown for Dart Pro Training Sheet: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 606 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Dart Pro Training Sheet make per month?▴
Based on our ML-calibrated revenue forecast, Dart Pro Training Sheet earns approximately $365/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 Dart Pro Training Sheet profitable?▴
With estimated build cost $210K and monthly revenue $365, Dart Pro Training Sheet 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 Dart Pro Training Sheet have?▴
Estimated audience: ~76K lifetime downloads, ~5K monthly active users, and ~1K 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 Dart Pro Training Sheet?▴
Browse the full Sports 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 Dart Pro Training Sheet built with?▴
Our heuristic places Dart Pro Training Sheet 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 Dart Pro Training Sheet still actively maintained?▴
Maintenance status: At risk (50% abandonment risk). Last shipped version was 10 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Dart Pro Training Sheet last updated?▴
Dart Pro Training Sheet last shipped a new version on 2025-07-02 — 10 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Dart Pro Training Sheet?▴
Dart Pro Training Sheet is published by Niko Börger 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 Dart Pro Training Sheet's BU Score?▴
Dart Pro Training Sheet has a BU Score of 56/100 (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.