Stroke Rate Coach
52
Quality Score
Solid
Stroke Rate Coach
by batyanko
Low confidence
✍️ Bumetric analysis
“
Stroke Rate Coach is an Android app from batyanko in the Sports category, currently rated 4.4★ across 34 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 52: 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
$145
per month
→
12-mo forecast
$73 – $678
per month
→
24-mo forecast
$73 – $2033
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
1 snapshots on record
Rating
4.4
Reviews
34 reviews
Forecast Revenue / mo
$145
Snapshots tracked
1
since Aug 2026
ONE-TIME · BUILD
💰 Estimated build cost
$200K
↳ What it cost to build · not monthly revenue
Likely range $150K – $270K
$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 |
| ⚙ Sports complexity ×1.90 | +$45K |
| 🌐 Cross-platform reach (iOS + Android) | +$52K |
| ⚙ 8.7y maintenance × ~1-person team | +$51K |
Total estimate
$200K
🛠 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
Likely abandoned
82%
Last shipped 2025-08-09 · 413 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
| 📅 1y 1mo since last update | Likely deprioritized |
| 👥 Small user base (34 ratings) + 8.7y old | +10% (solo-project pattern) |
Verdict
Likely abandoned
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$145/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$93 – $370
12 months
$73 – $678
24 months
$73 – $2.0K
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 · 32/100MICRO TIERtoo early to scoreRevenue Strength
2.2
Product Quality
3.5
Market Position
0.0
Growth Velocity
5.0
Defensibility
4.2
Operational Safety
7.0
Founder Strength
2.8
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.43★ across 34 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 413d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (413d since update).
🎯 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 = $2K-$4K.
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:
| Mature app (8y old)METRIC | +$1,500 | |
| Good rating (4.4★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Pre-traction phase (34 ratings)METRIC | −$300 |
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
- Stroke Rate Coach
- Developer
- batyanko
- Bundle ID
- com.batyanko.strokeratecoach
- App Store URL
- Open in App Store
- Category
- Sports
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.batyanko.com
- 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
- $146/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.
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
Stroke Rate Coach is a rowing metronome - it beeps at a desired rate per minute.
- Simple SPM (Strokes Per Minute) rate setting
- Complex workouts based on distance, time or stroke count
- Speed measurement and control with speed control warning
- Beeps in the background - combine with other sports apps (let me know how that works for you, some phones frequently close background apps)
Tested & working on devices starting Android 5.0 Lollipop. No need taking your brand new $$$-Ultraphone for a swim - almost any old Android 5+ phone will do.… View full description on the official store →
- Simple SPM (Strokes Per Minute) rate setting
- Complex workouts based on distance, time or stroke count
- Speed measurement and control with speed control warning
- Beeps in the background - combine with other sports apps (let me know how that works for you, some phones frequently close background apps)
Tested & working on devices starting Android 5.0 Lollipop. No need taking your brand new $$$-Ultraphone for a swim - almost any old Android 5+ phone will do.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.23🔄 updated 1y ago📂 Sports💰 Free🚀 Launched 2018 (8y old)
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 34 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
8 answers · auto-generated from this app's public dataHow much does Stroke Rate Coach make per month?▴
Based on our ML-calibrated revenue forecast, Stroke Rate Coach earns approximately $145/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 Stroke Rate Coach profitable?▴
With estimated build cost $200K and monthly revenue $145, Stroke Rate Coach 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.
What apps are like Stroke Rate Coach?▴
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 Stroke Rate Coach built with?▴
Our heuristic places Stroke Rate Coach 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 Stroke Rate Coach still actively maintained?▴
Maintenance status: Likely abandoned (82% 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.
When was Stroke Rate Coach last updated?▴
Stroke Rate Coach last shipped a new version on 2025-08-09 — more than 1 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Stroke Rate Coach?▴
Stroke Rate Coach is published by batyanko 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 Stroke Rate Coach's BU Score?▴
Stroke Rate Coach has a BU Score of 52/100 (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.