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.
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.
- 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
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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!
Musical Keyboard
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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
Verdict
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
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.
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.
| Parameter | Electron ECHO mini piano | Musical Keyboard |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 5.0 (11 ratings) — better | — |
| Positive reviews | 93.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 2 months — better | Every 50 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPod, Apple Watch — better |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Emil Korngold | Aron Nelson |
In-app purchases
Electron ECHO mini piano
No in-app purchases
Musical Keyboard
No in-app purchases
Questions
Is Electron ECHO mini piano free?
Is Musical Keyboard free?
Do Electron ECHO mini piano or Musical Keyboard have ads?
Which is updated more often, Electron ECHO mini piano or Musical Keyboard?
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