Play, learn, compose, enjoy!

"chaotic piano" is designed for smartphones and tablets.
Free virtual smart piano simulator app!

This piano app is more than just a toy piano.

Carry this magic keyboard in pocket.
Enjoy the best music life anywhere, anytime!

== Realistic piano sounds sampled in real life
The Fine Sound of Grand Piano
Normalized and mastered, no need to worry about volume!

== Ultra-low latency
HCA, a voice codec developed by CRI, provides ultra-low latency and low load while achieving high sound quality!
In addition, since this piano app gives priority to the new notes played than the notes played earlier, the low notes played before will not drown out the high notes played afterwards.

== Full 88 keys keyboard.
Realistic full 88 keys keyboard
Support Glissando
Multi-touch support, 5 or 10 fingers can play at the same time!
Velocity support (touch position detection)! Even devices without pressure-sensitive touch can do it!

== Multi-lingual display of multiple languages

== Supports both portrait and landscape orientation
There is no other piano app allows you to play in portrait orientation.
This app can play in any orientation even if you reverse your screen.

== Dual Low (2-stage keyboard)
Adjusts the width of the keyboard, octave position, etc. for each of the keyboards, and settings saved automatically!
You can focus on your music by recalling the last displayed range when you start the app, saving you the hassle of setting every time!

== Duet function
The piano duet function can be achieved by another keyboard at the opposite side!
High quality instrument for multi-players suitable for family, friends, and kids!

== Recording function and recording data management function
You can also synchronize your data with local storage and online cloud storage, and share your data with SMS and other social networking services.
The sharing function depends on the social networking app (Facebook, TikTok, Instagram, WhatsApp, Twitter and etc.) installed in the device.

== High-definition effects built in
The pitch shifter slider and vibrato slider allow you to change the tone at will!
This allows you to create a wide variety of virtual sounds, although the only built-in tone is the piano.
Grand pianos, bright pianos, music boxes, pipe organs, harpsichords, electric pianos, synthesizers, electric guitars, acoustic guitars, xylophones, iron kotos, saxophones, percussion drums, flutes, and more... you name it... Just enjoy letting your imagination run wild with these virtual sounds!
You can play all genres of music: classical, pop, jazz, blues, rock, trad, movie music, love songs, children's songs, animated songs (ani-songs), Disney classics, and more.

== Purpose of this application
Piano practice and performance
Perfect pitch training without musical notation
Checking pitch when practicing a song
Compose, as a memo and achieve of composition ideas, melodies creation
Improve listening, memorization and concentration skills
Learn the sense of rhythm by tapping game

Whether you're a beginner piano player or a professional pianist, you're in for a great solution!

== Premium Edition Features
Remove the ads
Add another high quality pitch shifter
Add high-precision tap tempo button.
Add screen rotation lock button.
Add all-silver and all-gold keys

== Notes.
Old devices may be slow in loading voice data at startup.
Depending on your device's SoC and its performance, there may be noise or shortened data in the recorded data.
It does not support connection with MIDI devices.
Auto-save may not work if the app does not exit successfully.
GarageBand cooperation is not considered.
If there are more recordings, it may take longer to load the list.

Powered by "CRIWARE".CRIWARE is a trademark of CRI Middleware Co., Ltd.

What’s New

Version 1.0.9

1.0.9 2020-11-09
SDK Optimization
A minor bug has been fixed.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Fumitake Iwaya, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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