ChorusClass
49
Quality Score
Emerging
ChorusClass
by ChorusClass AB
Medium confidence
✍️ Bumetric analysis
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ChorusClass is an Android app from ChorusClass AB in the Music & Audio category, currently rated 3.6★ across 374 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 49: Emerging (early traction worth watching). For a Music & Audio app, that means early traction worth watching. 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
$500
per month
→
12-mo forecast
$437 – $1575
per month
→
24-mo forecast
$405 – $3644
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
1 snapshots on record
Rating
3.6
Reviews
374 reviews
Forecast Revenue / mo
$500
Snapshots tracked
1
since May 2026
ONE-TIME · BUILD
💰 Estimated build cost
$190K
↳ What it cost to build · not monthly revenue
Likely range $140K – $255K
$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 |
| ⚙ Music & Audio complexity ×1.45 | +$26K |
| 🌐 Cross-platform reach (iOS + Android) | +$47K |
| ⚙ 9.4y maintenance × ~1-person team | +$56K |
Total estimate
$190K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$15K
↳ What it would sell for · not monthly revenue
Marketplace range $10K – $20K · 28× MRR multiple
💸
~0.1× build cost (under-water)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎 IAP / freemium model base | 28× MRR |
| 📅 9.4y proven track record | +20% |
| ⭐ ★ rating 3.5-4.0 (mixed) | -8% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
28× MRR
👥 Estimated audience size
34K
Lifetime downloads (US-equivalent)
Monthly active
3.7K
Daily active
1.8K
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
| 📲 Music & Audio engagement | ~130 installs / rating |
| 📅 9.4y of rating accumulation | -30% |
| 🔁 Music & Audio D30 retention | 20% |
| 📍 DAU / MAU stickiness | 0.50 |
DAU / MAU
49% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
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 | Music & Audio |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Likely abandoned
82%
Last shipped 2025-08-13 · 417 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 (374 ratings) + 9.4y old | +10% (solo-project pattern) |
Verdict
Likely abandoned
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$500/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
6 months
$426 – $993
12 months
$437 – $1.6K
24 months
$405 – $3.6K
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 · 44/100INDIE TIERexpected for tierGrowth Velocity
5.0
Founder Strength
3.5
Product Quality
5.0
Revenue Strength
2.7
Monetization Maturity
5.0
Defensibility
6.8
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 3.57★ across 374 reviews — below category median.
- 📍 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 = $9K-$16K.
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:
| subscriptionREVIEW | +$2,500 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (374 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- ChorusClass
- Developer
- ChorusClass AB
- Bundle ID
- com.chorusclass.chorusclass
- App Store URL
- Open in App Store
- Category
- Music & Audio
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.chorusclass.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
- $500/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $2.49 - $71.99 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.
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
Have you thought about an easier way for your chorus members to learn their parts? ChorusClass is an app that makes it possible for chorus members to practice at home, school, work or anywhere, with a single tap on your phone.
Record voice or instrument parts and invite members to your chorus. Now your members can practice in between rehearsals. This gives the chorus rehearsals more time for singing together.
Record multipart harmonies with a single tap on your smartphone or tablet and rehearse by muting/unmuting the different parts while you sing along.… View full description on the official store →
Record voice or instrument parts and invite members to your chorus. Now your members can practice in between rehearsals. This gives the chorus rehearsals more time for singing together.
Record multipart harmonies with a single tap on your smartphone or tablet and rehearse by muting/unmuting the different parts while you sing along.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v3.4.0🔄 updated 1y ago📂 Music & Audio💰 Free📺 Ad-supported💎 IAP $2.49 - $71.99 per item🚀 Launched 2017 (9y old)
🧪
Tech & Domain Intel — chorusclass.com
- Mail provider
- Google Workspace
- Tech stack
- Meta (Facebook) Ads · Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for ChorusClass: 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: 374 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does ChorusClass make per month?▴
Based on our ML-calibrated revenue forecast, ChorusClass earns approximately $500/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 ChorusClass profitable?▴
With estimated build cost $190K and monthly revenue $500, ChorusClass 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 ChorusClass have?▴
Estimated audience: ~34K lifetime downloads, ~3K 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 ChorusClass?▴
Browse the full Music & Audio 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 ChorusClass built with?▴
Our heuristic places ChorusClass on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is ChorusClass 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.
How much would ChorusClass sell for?▴
Estimated acquisition value: $15K (marketplace range $10K – $20K). Calculated as 28× 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 ChorusClass last updated?▴
ChorusClass last shipped a new version on 2025-08-13 — more than 1 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes ChorusClass?▴
ChorusClass is published by ChorusClass AB 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 ChorusClass's BU Score?▴
ChorusClass has a BU Score of 49/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.