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49
BU Score
Emerging

Perfect Kalimba

4.0 ✍️ Editor
✍️ bumetric analysis

Perfect Kalimba is an iOS app from SENSOR NOTES JOINT STOCK COMPANY in the News category, currently rated 4.0★ across 65 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.

Our BU Score puts it at 49: Emerging (early traction worth watching). For a News app, that means early traction worth watching.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Paid app ($0.00)METRIC
+$2,800
Good rating (4.0★)METRIC
+$800
Established app (4y old)METRIC
+$800
Single-language (English only)METRIC
−$400
Pre-traction phase (65 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 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.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 77 MB🔞 4+📱 iOS 8.0+🔖 v4.3🔄 updated 4y ago🌐 EN📂 News💰 Paid🚀 Launched 2021 (4y old)

📝 About this app

With Perfect Kalimba Tabs, you have a real virtual kalimba music instrument right in your pocket! No need to carry your instrument all the time, you can start jamming at any time, play riffs tabs and chords anywhere, anytime... This Kalimba connect tutor is one of the best virtual Kalimba connect for mobile & tablet. The app offers tons of songs with easy lessons, and we add new tabs every week! Don't waste more time, start playing now!...

Features:
- Full string Kalimba connect with 17 keys
- Play with 1,000,000+ song from music kalimba tabs songbooks
- Connect with real Kalimba with notes recognition mode
- Daily Challenge mode
- Global Leaderboard
- Multi-touch and swipe supported
- Be able to record kalimba connect while playing
- Supports a wide variety of keyboard instruments (Piano, Grand Piano, Pipe Organ, Harpsichord, Accordion, Electric Guitar, Harp, Cello Pizzicato, Guzheng, Nylon Guitar, Plucked String, Music Box, Sitar, Xylophone, Harp, Vibes, Clarinet, Ukulele, Brass, Thai Bells, Tabbla, Dizi, Banjo, Flute, Saxophone, Cellto, Hamonica, Trumpet, Violin, Panpipe, Maracas, Tuba, Dulcimer, Kalimba,...)
- Lessons Kalimba mode for easy learning
- Magic Kalimba mode added
- Kalimba tuner

Profile & Insights

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

Identification

App name
Perfect Kalimba
Developer
SENSOR NOTES JOINT STOCK COMPANY
Bundle ID
app.sensornotes.perfectkalimba
App Store URL
Open in App Store
Category
News
Content rating
4+
Languages
EN

Company

Website
sensornotes.com
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
$86/mo
Top-grossing rank
Outside top 100 in US News
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
📈Ratings growth65 ratings+6400% lifetimeShow 3-year history estimate ▾Jan 2022Jul 2024May 2026
Tracked (13 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.

Similar apps in News

Full revenue analysis
Read the article-style breakdown for Perfect Kalimba: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →