Comparison

Electron ECHO mini piano vs Musical Keyboard

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electron ECHO mini piano

Experience a simulated musical toy from the 1980s, complete with authentic synthesized sounds and optional battery depletion detuning. Learn classic and modern melodies with a free songbook and enjoy features like reverb and octave shifts.

Highlights
  • Simulated 1980s musical toy
  • Authentic synthesizer sound
  • Optional battery depletion detuning
  • Free songbook with melodies
  • Reverb effect
  • Octave down shift
  • Sub-oscillator for bass tones
Features
Read full description

Electron ECHO mini piano is a simulated version of a popular musical toy from the 1980's. Just like the real thing, it (optionally) detunes as your battery depletes! Includes a FREE songbook with instructions for classic and modern melodies and an extensive essay on the original device. IT'S A SYNTH Modeled after the original device sound through wave shape analysis. No cheap samples, it's a synthesizer! FREE SONGBOOK Includes free songbook. Learn how to play your favorite melodies. More songs added in future updates, free of charge! FOUR SKIN COLORS Choose your favorite color from four available skins! REVERB EFFECT Pretend you're playing in a large hall! BACKGROUND AUDIO Play along with music from iTunes, Spotify or any other music app you might use! OCTAVE DOWN Too pitchy sounding for ya? With the flip of a switch you can tune the keyboard down by one full octave! SUB-OSCILLATOR Want to get a bit of electro bass going? Optionally add a square wave sound tuned one octave below the notes you play! Get your retro on, get back to the 80's with Electron ECHO mini piano NOW!

About

Musical Keyboard

Features
Read full description

A mini keyboard for your watch. How many times have you wanted to get a pitch only to realize you had to fire up your computer, or turn on your keyboard just to get a pitch? No need to find your guitar, just use the music keyboard on your watch! Fast, easy, obvious. Bonus screens contains guitar and ukulele pitches. Use the crown to change octaves or just press on the screen. If you don't have perfect pitch, but have great relative pitch, this is a great tool to have around to find a reference pitch. Sometimes you just want to find out what key a song is in, or you want to transcribe some chords which are easy, but you don't know the starting key. You know that all you need is a reference pitch.

Screenshots

Electron ECHO mini piano3 screens

Verdict

The call

The clearest difference is update cadence: Electron ECHO mini piano at every 2 months against Musical Keyboard's every 50 months. Electron ECHO mini piano also leads on iOS requirement (7.0 vs 13.0). Musical Keyboard's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Electron ECHO mini piano costs $1.99 and Musical Keyboard $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Electron ECHO mini piano ships an update every 2 months, Musical Keyboard every 50 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 7 level
Electron ECHO mini piano versus Musical Keyboard: the parameters behind the verdict, then further details
ParameterElectron ECHO mini pianoMusical Keyboard
Price$1.99$0.99 — better
Rating5.0 (11 ratings) — better—
Positive reviews93.3% of reviews—
Number of ratings11 — better—
Update frequencyEvery 2 months — betterEvery 50 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS7.0 — better13.0
Further details — not scored
Size6 MB3 MB
Age rating4+4+
DeveloperEmil KorngoldAron Nelson

In-app purchases

None

Electron ECHO mini piano

No in-app purchases

None

Musical Keyboard

No in-app purchases

Questions

Is Electron ECHO mini piano free?
Electron ECHO mini piano costs $1.99, with no in-app purchases.
Is Musical Keyboard free?
Musical Keyboard costs $0.99, with no in-app purchases.
Do Electron ECHO mini piano or Musical Keyboard have ads?
Neither Electron ECHO mini piano nor Musical Keyboard shows ads.
Which is updated more often, Electron ECHO mini piano or Musical Keyboard?
Electron ECHO mini piano ships an update every 2 months, and Musical Keyboard every 50 months. Most recently, Electron ECHO mini piano was updated on November 6, 2026 and Musical Keyboard on November 11, 2026.

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