Smart Metronome & Tuner
71
Quality Score
Strong
✍️ Bumetric analysis
“
Smart Metronome & Tuner is an iOS app from Tomohiro Ihara, currently rated 4.7★ across 58,947 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 71: Strong (healthy traction). For an app like this, that means healthy traction. 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 tierFREE
💡 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
2 snapshots on record
Rating
4.7
Reviews
58,947 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
2
since Aug 2026
ONE-TIME · BUILD
💰 Estimated build cost
$125K
↳ What it cost to build · not monthly revenue
Likely range $95K – $170K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~2.1y 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 |
| ⚙ 12.3y maintenance × ~1-person team | +$73K |
Total estimate
$125K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $125K · 21× MRR multiple
💸
~0.8× 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 |
| 📅 12.3y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
Final multiple
21× MRR
👥 Estimated audience size
6.2M
Lifetime downloads (US-equivalent)
Monthly active
350K
Daily active
70K
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
| 📲 category engagement | ~150 installs / rating |
| 📅 12.3y of rating accumulation | -30% |
| 🔁 category D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.20 |
DAU / MAU
20% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
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
| 📦 App bundle size | 27 MB |
| 🏷 Category context | category |
| 📦 Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Active
5%
Last shipped 2026-09-11 · 30 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
| 📅 30 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$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 · 45/100MID TIERFREE (NO MONETIZATION)underperforming peersGrowth Velocity
5.0
Founder Strength
3.5
Product Quality
7.9
Revenue Strength
3.7
Monetization Maturity
0.5
Defensibility
6.0
Market Position
2.0
Operational Safety
7.1
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.71★ across 58,947 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Moderate — scam/fraud mentions detected, rating drift -0.79 ★ (recent 50 vs lifetime).
🎯 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
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:
| Mid install base (58,947 ratings)METRIC | +$5,500 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Mature app (12y old)METRIC | +$1,500 | |
| Multilingual (10 languages)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 |
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 · v18.1
Fixed minor bugs.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Smart Metronome & Tuner
- Developer
- Tomohiro Ihara
- Bundle ID
- Not found
- App Store URL
- Open in App Store
- Category
- Not found
- Content rating
- 4+
- Languages
- EN, FR, DE, JA, KO, PL, PT, ZH, ES, ZH
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
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.
⭐Recent App Store Reviews49 latest · avg 4.08★ · 61.2% 5★ · 16.3% 1★
5★30 (61%)
4★9 (18%)
3★2 (4%)
2★0 (0%)
1★8 (16%)
+257 ratings/week
Praise: great ×10 amazing ×5 best ×5 perfect ×4 awesome ×3Complaints: hate ×1 bug ×1
Top positive
★★★★★ Greater metronome
Works great and easy to use. I use this thing all the time at home.…
★★★★★ Perfect
Perfect color/colour…
Top negative
★☆☆☆☆ Spam
Getting a lot of spam that directs me to unwanted sex sites…
★☆☆☆☆ Have adds that lead to hackers
I was just using the metronome and I looked back at my phone and I was in safari looking at a virus message, I go back to the app and it was because of a pop up, decent met though…
🌍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.
🚀Version Release Timeline2 releases tracked
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 "Three Essentials" of music practice, unified on one screen.
Metronome, Tuner, and Recorder. We have integrated the three indispensable tools for every musician into one elegant and intuitive interface. No more switching between apps—stay fully focused on your music.
- Professional Precision: 1/44,100 sec.
Do you have doubts about the accuracy of digital metronomes? Smart Metronome controls timing and sound playback via hardware, not just software. This guarantees an exact pulse, independent of CPU load, with a precision of 1/44,100th of a second.… View full description on the official store →
Metronome, Tuner, and Recorder. We have integrated the three indispensable tools for every musician into one elegant and intuitive interface. No more switching between apps—stay fully focused on your music.
- Professional Precision: 1/44,100 sec.
Do you have doubts about the accuracy of digital metronomes? Smart Metronome controls timing and sound playback via hardware, not just software. This guarantees an exact pulse, independent of CPU load, with a precision of 1/44,100th of a second.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 27 MB🔞 4+📱 iOS 15.6+🔖 v18.1🔄 updated 1mo ago🌐 EN, FR, DE, JA, KO +5💰 Free🚀 Launched 2014 (12y old)
📅
What Worked™ · Development Pipeline
2 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 →
2026-09
🔧
Shipped update — v17.7 → v18.1
→ 30 days after: reviews +1,106 high confidence
2026-08
🚀
First tracked snapshot — initial data captured
→ 30 days after: reviews +1,106 high confidence
🗣
Voice of Customer
Based on 787 reviews across 9 markets● 68% positive · ● 17% neutral · ● 16% negative · Rating drift: -0.79★ (declining — recent 50: 3.92★ vs lifetime: 4.71★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.63
🇦🇺 AU
+0.52
🇺🇸 US
+0.48
🇨🇦 CA
+0.45
🇬🇧 GB
+0.44
🇫🇷 FR
+0.39
🇧🇷 BR
+0.21
🇯🇵 JP
+0.01
🇩🇪 DE
-0.01
Top praise themes
highly recommend ×11 free version ×10 first beat ×7 perfect perfect ×6 five stars ×6 keep beat ×5 works perfectly ×5 because helps ×4
Top complaint themes
doesn work ×5 ads ads ×4 full screen ×4 pop ups ×4 read review ×4 paid version ×3 free version ×3 close ads ×3
Risk signals
Fraud / scam mentions: 1.1%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.55658★ | 2,722 | 4.55658★ this version |
| 🇧🇷 BR | 4.91655★ | 695 | 4.91655★ this version |
| 🇨🇦 CA | 4.65982★ | 3,698 | 4.65982★ this version |
| 🇩🇪 DE | 4.55668★ | 3,219 | 4.55668★ this version |
| 🇫🇷 FR | 4.68167★ | 311 | 4.68167★ this version |
| 🇬🇧 GB | 4.64918★ | 3,831 | 4.64918★ this version |
| 🇮🇳 IN | 4.71091★ | 339 | 4.71091★ this version |
| 🇯🇵 JP | 4.60974★ | 146,298 | 4.60974★ this version |
| 🇺🇸 US | 4.71061★ | 60,996 | 4.71061★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Smart Metronome & Tuner: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Tomohiro Ihara
View all →📦 Portfolio summaryINDIE studio
2apps·$10K/mocombined
Lead-app heavy — top app contributes 50%
About this analysis
Why high confidence: 58,947 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Smart Metronome & Tuner make per month?▴
Based on our ML-calibrated revenue forecast, Smart Metronome & Tuner 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 Smart Metronome & Tuner profitable?▴
With estimated build cost $125K and monthly revenue $5.0K, Smart Metronome & Tuner looks break-even-grade — payback period sits around 2.1 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Smart Metronome & Tuner have?▴
Estimated audience: ~6.2M lifetime downloads, ~350K monthly active users, and ~70K 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 is Smart Metronome & Tuner built with?▴
Our heuristic places Smart Metronome & Tuner on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is Smart Metronome & Tuner still actively maintained?▴
Maintenance status: Active (5% 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 Smart Metronome & Tuner sell for?▴
Estimated acquisition value: $100K (marketplace range $75K – $125K). Calculated as 21× 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 Smart Metronome & Tuner last updated?▴
Smart Metronome & Tuner last shipped a new version on 2026-09-11 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Smart Metronome & Tuner?▴
Smart Metronome & Tuner is published by Tomohiro Ihara 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 Smart Metronome & Tuner's BU Score?▴
Smart Metronome & Tuner has a BU Score of 71/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.