How much does Scales Practice Pro make per month?

Based on our ML-calibrated revenue forecast, Scales Practice Pro earns approximately $5.0K/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 Scales Practice Pro profitable?

With estimated build cost $200K and monthly revenue $5.0K, Scales Practice Pro looks slow ROI — payback period is around 3.3 years at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does Scales Practice Pro have?

Estimated audience: ~22K lifetime downloads, ~1K monthly active users, and ~600 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 Scales Practice Pro?

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 Scales Practice Pro built with?

Our heuristic places Scales Practice Pro 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 Scales Practice Pro still actively maintained?

Maintenance status: Slowing (25% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Scales Practice Pro sell for?

Estimated acquisition value: $75K (marketplace range $50K – $100K). Calculated as 17× 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 Scales Practice Pro last updated?

Scales Practice Pro last shipped a new version on 2026-08-27 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Scales Practice Pro?

Scales Practice Pro is published by Stonekick 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 Scales Practice Pro's BU Score?

Scales Practice Pro has a BU Score of 60/100 (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.

Scales Practice Pro

Quality Score

Solid

Scales Practice Pro

Name: Scales Practice Pro — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Scales Practice Pro revenue, Scales Practice Pro app analytics, mobile app revenue estimate, Music & Audio revenue, Android app revenue

by Stonekick

Medium confidence

4.3 Google Play rating

✍️ Bumetric analysis

“

Scales Practice Pro is an Android app from Stonekick in the Music & Audio category, currently rated 4.3★ across 249 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 60: Solid (established niche player). For a Music & Audio 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

$5.0K

per month

→

12-mo forecast

$5.2K – $10.8K

per month

→

24-mo forecast

$6.4K – $19.2K

per month

MID tier

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Description hook & conversion structure
Screenshots, ratings, reviews strategy

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Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

1 snapshots on record

idle

Rating

4.3

Reviews

249 reviews

Forecast Revenue / mo

$5.0K

Snapshots tracked

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

📈 Pays back in ~3.3y 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
⚙ Music & Audio complexity ×1.45	+$22K
🌐 Cross-platform reach (iOS + Android)	+$40K
⚙ 14.1y maintenance × ~1-person team	+$84K

Total estimate $200K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$75K

↳ What it would sell for · not monthly revenue

Marketplace range $50K – $100K · 17× MRR multiple

💸 ~0.4× build cost (under-water)

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
📅 14.1y proven track record	+20%
⭐ Small user base (<1K ratings)	-8%

Final multiple 17× MRR

👥 Estimated audience size

22K

Lifetime downloads (US-equivalent)

Monthly active

1.2K

Daily active

600

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
📅 14.1y of rating accumulation	-30%
🔁 Music & Audio D30 retention	20%
📍 DAU / MAU stickiness	0.50

DAU / MAU 50% 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

Slowing

25%

Last shipped 2026-08-27 · 37 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

📅 37 days since last update	Healthy release cadence
👥 Small user base (249 ratings) + 14.1y old	+10% (solo-project pattern)

Verdict Slowing

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$5.0K/mo · ML-estimated from 234 triggers

Growth rate

+4.0% MoM · MID tier baseline (compound monthly)

6 months

$4.7K – $7.9K

12 months

$5.2K – $10.8K

24 months

$6.4K – $19.2K

Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.

📊

BU Investment Matrix

Below median · 49/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

5.9

Product Quality

6.1

Revenue Strength

3.7

Monetization Maturity

1.0

Defensibility

7.5

Market Position

0.0

Operational Safety

10.0

💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.33★ across 249 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 = $90K-$160K.

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

MODEL

Revenue 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:

Paid app ($1.99)METRIC		+$2,800
Mature app (14y old)METRIC		+$1,500
Good rating (4.3★)METRIC		+$800
Early-stage install base (249 ratings)METRIC		+$400

METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📥 Estimated Downloads / week

PROXY · ratings × 50/wk —

Industry-rule estimate (Sensor Tower / data.ai): one weekly install ≈ 50 new ratings. Solid points = tracked snapshots · faded line = pre-tracking model backfill.

📈 Reviews Growth

LIVE

Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE

Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY

Each bar shows a tracked update and the metric delta from the previous snapshot.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name: Scales Practice Pro
Developer: Stonekick
Bundle ID: com.andymstone.scalespro
App Store URL: Open in App Store
Category: Music & Audio
Content rating: Not found
Languages: Not found

Company

Website: www.stonekick.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: $5.0K/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

The Pro version of Scales Practice with lots more scales and arpeggios to choose from!

Learn scales for your exams, to improve your playing, or to enhance your music theory! Now includes the option to transpose for instruments in different keys. With Scales Practice you can pick a scale or arpeggio and show all of its notes. You then press play to check how the scale sounds or play along with your instrument to check your pitch and help your music practice.

You can also save Playlists of chosen scales to play through one by one or get the app to pick a scale at random.

Features:… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v2.0.0🔄 updated 1mo ago📂 Music & Audio💰 Free🚀 Launched 2012 (14y old)

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for Scales Practice Pro: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →