📊 29K iOS Apps Tracked Updated 4 min ago ⚡ Revenue Forecasts
Create Account 🔑 Sign In
Home ⚡ Optimize
86
BU Score
Excellent

Simply Piano: Klavier lernen

4.7 ✍️ Editor
✍️ 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

Loading…
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 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

LIVE
Cumulative 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

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 →
💾 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

🆕 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
LinkedIn
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
Email
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 ▾May 2023Apr 2025May 2026
Tracked (11 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic DistributionTop 10Top 30Top 60
GB#4FR#4DE#5AU#5CA#6US#9IN#10BR#13JP#28
🌍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.

More by Simply Ltd

View all →

Similar apps in Education

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.
Read deep-dive →