GuitarNotes - Master Fretboard
69
Quality Score
Solid
GuitarNotes - Master Fretboard
Medium confidence
✍️ bumetric analysis
“
GuitarNotes - Master Fretboard is an iOS app from 小舟 苏 in the News category, currently rated 4.7★ across 220 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 69: Solid (established niche player). For a News 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
$4.7K
per month
→
12-mo forecast
$4.1K – $14.7K
per month
→
24-mo forecast
$3.8K – $34.1K
per month
INDIE 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
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$60K
↳ What it cost to build · not monthly revenue
Likely range $45K – $80K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~5 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 |
Total estimate
$60K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 15× MRR multiple
💸
~2.9× 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 |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 News category multiple | -5% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
15× MRR
👥 Estimated audience size
26K
Lifetime downloads (US-equivalent)
Monthly active
3.9K
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
| 📲 News engagement | ~120 installs / rating |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
44% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$4.7K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
6 months
$4.0K – $9.3K
12 months
$4.1K – $14.7K
24 months
$3.8K – $34.1K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 41/100INDIE TIERexpected for tierGrowth Velocity
5.0
Founder Strength
5.1
Product Quality
6.6
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
4.5
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Modest — $1K - $11K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.7★ across 220 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 662d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (662d 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 = $84K-$149K. Portfolio play ($11K/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 8 of 8 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($2.99)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| Mature app (14y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| Early-stage install base (220 ratings)METRIC | +$400 | |
| 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 · v3.2.0
- Bug fixes and performance improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- GuitarNotes - Master Fretboard
- Developer
- 小舟 苏
- Bundle ID
- com.suxiaozhou.GuitarNotes
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Smart Apps for iOS & macOS
- Description
- Smart Apps for iOS and macOS
- 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
- $11.7K/mo
- Top-grossing rank
- Outside top 100 in US News
- 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 growth220 ratings+21900% lifetimeShow 3-year history estimate ▾
Tracked (35 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍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
Master the notes on your guitar fretboard with ease!
TWO PRACTICE MODES:
- Guess the Note - Identify the note name for a given fret location
- Locate the Note - Identify the correct positions for a given note.
FEATURES:
- Suitable for both right-handed and left-handed guitarists.
- Customize quizzes with your preferred notes, strings, and fret range.
- Realistic guitar sounds.
- Set practice session duration for focused learning.
TWO PRACTICE MODES:
- Guess the Note - Identify the note name for a given fret location
- Locate the Note - Identify the correct positions for a given note.
FEATURES:
- Suitable for both right-handed and left-handed guitarists.
- Customize quizzes with your preferred notes, strings, and fret range.
- Realistic guitar sounds.
- Set practice session duration for focused learning.
App Specs
🔐 Own this app? Claim & verify MRR →💾 4 MB🔞 4+📱 iOS 15.0+🔖 v3.2.0🔄 updated 0d ago🌐 EN📂 News💰 Paid
📅
What Worked™ · Development Pipeline
7 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 →
2026-03
⭐
Rating ↑ 4.12 → 4.70 (improved 0.58★)
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-03
💲
Went paid — introduced $2.99 price point
2017-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2014-02
⭐
Rating ↑ 3.67 → 4.00 (improved 0.33★)
2012-03
⭐
Rating ↓ 5.00 → 3.50 (dropped 1.50★)
2012-02
🚀
First tracked snapshot — initial data captured
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for GuitarNotes - Master Fretboard: 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: 220 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does GuitarNotes - Master Fretboard make per month?▴
Based on our ML-calibrated revenue forecast, GuitarNotes - Master Fretboard earns approximately $11K/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.
What apps are like GuitarNotes - Master Fretboard?▴
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.
Who makes GuitarNotes - Master Fretboard?▴
GuitarNotes - Master Fretboard is published by 小舟 苏 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 GuitarNotes - Master Fretboard's BU Score?▴
GuitarNotes - Master Fretboard has a BU Score of 69/100 (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.