86
BU Score
Excellent
Simply Piano: Klavier lernen
✍️ bumetric analysis
“
Simply Piano: Klavier lernen is an iOS app from Simply Ltd in the Education category, currently rated 4.7★ across 817,149 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 86: Excellent (strong product-market fit). For a Education app, that means strong product-market fit.
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
—
Reviews
—
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 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (817,149 ratings)METRIC | +$12,000 | |
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Multilingual (14 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| support teamREVIEW | +$900 | |
| priceyREVIEW | −$800 |
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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26
Apr 26
May 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 272 MB🔞 4+📱 iOS 15.0+🔖 v9.10.68🔄 updated 3d ago🌐 AR, NL, EN, FR, DE +9📂 Education💰 Paid🚀 Launched 2015 (10y old)
📝 About this app
Simply Piano is a fast and fun way to learn piano, from beginner to pro. Works with any piano or keyboard. Chosen as one of the best iPhone apps.
- Tons of fun songs like Imagine, Chandelier, All Of Me and Counting Stars, also J.S. Bach
- Includes courses for different musical tastes and playing levels
- Learn the basics step-by-step from reading sheet music to playing with both hands
- Slow down library songs to choose your own pace for easy learning
- Personalized 5-Min Workouts ensuring you progress fast and always succeed
- Suitable for all ages, no previous knowledge required to learn piano
No Piano? Try the Touch Courses with 3D Touch to turn your device into an on-screen keyboard!
How it works:
- Place your device (iPhone/iPad/iPod) on your acoustic/MIDI piano or keyboard and play; the app will immediately recognize what you are playing
- Get instant feedback on your playing to quickly learn and improve your piano skills
- Discover the magic of music with fun songs in the Library and complete courses to start sounding like a pro
How the Subscription Works:
- All app users can play two free courses. Upgrade to a premium subscription package at any time.
- Subscribers will receive full access to ALL courses. New courses and songs added every month!
- All recurring subscriptions will auto-renew unless auto-renewal is turned off at least 24 hours before the end of the current period.
- Account will be charged for renewal within 24-hours prior to the end of the current period, at the cost of the chosen package.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
- Your subscription is for your iTunes account and can be used on your iOS device.
- Payments will be charged to your iTunes account at confirmation of purchase.
- Subscriptions cannot be cancelled during the active subscription period.
Simply Piano is developed by Simply, creators of award-winning apps Simply Guitar, Simply Sing, Piano Maestro and Piano Dust Buster. Created by music educators, the apps are used by tens of thousands of music teachers worldwide with over 1 million songs learned every week. Simply are experts in creating educational and fun music apps for learning piano quickly and easily.
Awards & Recognition -
- ""EMI’s Innovation Challenge”
- ""World Summit Award"", by the United Nations
- “Best Tools for Beginners”, NAMM
- ""Best Tablet Game"", GameIS
- “Parents' Choice Award”
- “Golden App”, Apps for Homeschooling
Have questions, feedback or suggestions? Reach out to us via the in-app chat, just tap on Settings and ‘Have a Question’
Enjoy Playing!
privacy policy: https://www.hellosimply.com/legal/privacy
terms of use: https://www.hellosimply.com/legal/terms
- Tons of fun songs like Imagine, Chandelier, All Of Me and Counting Stars, also J.S. Bach
- Includes courses for different musical tastes and playing levels
- Learn the basics step-by-step from reading sheet music to playing with both hands
- Slow down library songs to choose your own pace for easy learning
- Personalized 5-Min Workouts ensuring you progress fast and always succeed
- Suitable for all ages, no previous knowledge required to learn piano
No Piano? Try the Touch Courses with 3D Touch to turn your device into an on-screen keyboard!
How it works:
- Place your device (iPhone/iPad/iPod) on your acoustic/MIDI piano or keyboard and play; the app will immediately recognize what you are playing
- Get instant feedback on your playing to quickly learn and improve your piano skills
- Discover the magic of music with fun songs in the Library and complete courses to start sounding like a pro
How the Subscription Works:
- All app users can play two free courses. Upgrade to a premium subscription package at any time.
- Subscribers will receive full access to ALL courses. New courses and songs added every month!
- All recurring subscriptions will auto-renew unless auto-renewal is turned off at least 24 hours before the end of the current period.
- Account will be charged for renewal within 24-hours prior to the end of the current period, at the cost of the chosen package.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
- Your subscription is for your iTunes account and can be used on your iOS device.
- Payments will be charged to your iTunes account at confirmation of purchase.
- Subscriptions cannot be cancelled during the active subscription period.
Simply Piano is developed by Simply, creators of award-winning apps Simply Guitar, Simply Sing, Piano Maestro and Piano Dust Buster. Created by music educators, the apps are used by tens of thousands of music teachers worldwide with over 1 million songs learned every week. Simply are experts in creating educational and fun music apps for learning piano quickly and easily.
Awards & Recognition -
- ""EMI’s Innovation Challenge”
- ""World Summit Award"", by the United Nations
- “Best Tools for Beginners”, NAMM
- ""Best Tablet Game"", GameIS
- “Parents' Choice Award”
- “Golden App”, Apps for Homeschooling
Have questions, feedback or suggestions? Reach out to us via the in-app chat, just tap on Settings and ‘Have a Question’
Enjoy Playing!
privacy policy: https://www.hellosimply.com/legal/privacy
terms of use: https://www.hellosimply.com/legal/terms
🆕 What's New · v9.10.68
Just like a piano, the app needed some tuning. We fixed some pesky bugs so it should B sharp now.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Simply Piano: Klavier lernen
- Developer
- Simply Ltd
- Bundle ID
- com.joytunes.asla
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- AR, NL, EN, FR, DE, HE, IT, JA, KO, PT, RU, ZH, ES, ZH
Company
- Website
- www.hellosimply.com
- Tagline
- Everyday moments of joy
- Description
- Feel the joy of playing piano and guitar, or discovering your singing voice, with Simply. The best apps for learning musical instruments.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- $5.0M ($4.0M – $6.0M)AI medium
- AI annual estimate
- $60.0M/yr
- ML model estimate / mo
- $14.9K/mo
- Top-grossing rank
- 🇬🇧#4 /100 🇫🇷#4 /100 🇩🇪#5 /100 🇦🇺#5 /100 🇨🇦#6 /100 🇺🇸#9 /100 🇮🇳#10 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- https://x.com/hellosimply
- https://www.linkedin.com/company/simply-joytunes/
- 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
- facebook · instagram · linkedin · twitter · youtube
- press@hellosimply.com
- Phone
- Not found
- Contact page
- Not found
- About page
- https://www.hellosimply.com/about
✨AI Revenue EstimateCONFIDENCE: MEDIUM
The iOS app "Simply Piano: Klavier lernen" by Simply Ltd. is estimated to generate approximately $5 million in monthly revenue, leading to an annual revenue estimate of $60 million. This is based on recent Sensor Tower data for various iOS App Store regions.
Sources mentioned: Sensor Tower, Adapty, Growjo, Prospeo, Calcalist, Reddit
⭐Recent App Store Reviews49 latest · avg 3.55★ · 49.0% 5★ · 24.5% 1★
5★24 (49%)
4★7 (14%)
3★2 (4%)
2★4 (8%)
1★12 (24%)
+1,696 ratings/week
Praise: love ×12 great ×6 best ×4 amazing ×4 recommend ×2Complaints: scam ×1 bug ×1 terrible ×1 expensive ×1 subscription ×1
Top positive
★★★★★ 𝕀 𝕝𝕠𝕧𝕖 𝕥𝕙𝕚𝕤 𝕒𝕡𝕡!
𝕋𝕙𝕚𝕤 𝕒𝕡𝕡 𝕙𝕖𝕝𝕡𝕤 𝕞𝕖 𝕝𝕖𝕒𝕣𝕟 𝕒𝕨𝕖𝕤𝕠𝕞𝕖! 𝔾𝕣𝕖𝕒𝕥 𝕒𝕡𝕡 𝕓𝕪 𝕥𝕙𝕖 𝕨𝕒𝕪😁.…
★★★★★ Cool
VERY FUN 😃…
Top negative
★☆☆☆☆ Ugg
When I downloaded this app, I thought it was gonna be the best but when I found out you had to pay, I got so angry. I love piano and I really wanna learn it, but you have to pay it. It’s just really really frustrated. So if you can fix this…
★☆☆☆☆ Demolished permanently
Deler from the suggested part…
📈Ratings growth817,149 ratings+41% lifetimeShow 3-year history estimate ▾
Tracked (11 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution●Top 10●Top 30●Top 60
🌍Top Countries — Grossing Rank9 countries
🇬🇧GB#4 /100
🇫🇷FR#4 /100
🇩🇪DE#5 /100
🇦🇺AU#5 /100
🇨🇦CA#6 /100
🇺🇸US#9 /100
🇮🇳IN#10 /100
🇧🇷BR#13 /100
🇯🇵JP#28 /100
📊Category Rank Trajectory#4 now · best #3 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
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.
Full revenue analysis
Read the article-style breakdown for Simply Piano: Klavier lernen: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.