59
BU Score
Solid
s.mart Circle of Fifths
✍️ bumetric analysis
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s.mart Circle of Fifths is an Android app from s.mart Music Lab in the Books & Reference category, currently rated 4.7★ across 261 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 59: Solid (established niche player). For a Books & Reference app, that means established niche player.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
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Reviews
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Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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:
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Mature app (11y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (261 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 →🔖 v1.5🔄 updated 1y ago📂 Books & Reference💰 Free🚀 Launched 2014 (11y old)
📝 About this app
s.mart Circle of Fifths sets standards! It shows every chord, either triads, 7th or 9th. It works for about 40 instruments and any tuning! You can choose between 300 scales beneath the modes of the major scale like Dorian, Lydian or Mixolydian. Go for the best!
⭐ Innovative 'Scale-circle' opens up new sounds for you
⭐ More than 300 scales besides the modes like Aeolian, Locrian or Phrygian
⭐ Shows triads, 7th or 9th chords
⭐ Chord charts with your favorite fingerings not just for Guitar
⭐ Shows the chords on the piano
⭐ Shows the scales spread on the fretboard… View full description on the official store →
⭐ Innovative 'Scale-circle' opens up new sounds for you
⭐ More than 300 scales besides the modes like Aeolian, Locrian or Phrygian
⭐ Shows triads, 7th or 9th chords
⭐ Chord charts with your favorite fingerings not just for Guitar
⭐ Shows the chords on the piano
⭐ Shows the scales spread on the fretboard… View full description on the official store →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- s.mart Circle of Fifths
- Developer
- s.mart Music Lab
- Bundle ID
- de.smartchord.droid.plug.cof
- App Store URL
- Open in App Store
- Category
- Books & Reference
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.smartchord.de
- 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
- $372/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth261 ratings+28% 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.
More by s.mart Music Lab
View all →
Full revenue analysis
Read the article-style breakdown for s.mart Circle of Fifths: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.