# Roll Player Piano

> Hand-cranked player piano app

Canonical page: [https://chrome-stats.com/d/id1568006330](https://chrome-stats.com/d/id1568006330)

## Overview

- **ID:** `id1568006330`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Takatoshi Ota
- **Category:** Music
- **Version:** 3.0.11
- **Last updated:** 2026-08-03
- **First published:** 2021-06-13
- **Size:** 213 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/roll-player-piano/id1568006330)
- **Website:** [https://grampy1935dc30.myportfolio.com/home](https://grampy1935dc30.myportfolio.com/home)
- **Privacy policy:** [https://grampy1935dc30.myportfolio.com/privacy-policy](https://grampy1935dc30.myportfolio.com/privacy-policy)

## Description

This is an application for playing a hand-cranked player piano. It is possible to perform hand-cranked performance by gesture operation without any special device.

Features
-Rotating finger gestures on the screen to play music.
-The music can be played according to the conducting motion of the index finger captured by the front camera*.
-The music can be played accordance to the movement of the rotating circle captured by the rear camera*.
-The tempo of the performance can be controlled by the speed of rotation.
-The volume of the performance can be controlled by the size of the rotation radius.
-You can also play at the volume according to the score.
-You can record your performance.
-57 different sound sources can be switched.
-The equalizer allows independent adjustment of the volume of the low, mid, and high frequencies.
-MIDI files can be imported**.
-You can enjoy automatic performance.
-You can bring multiple iPhones to enjoy ensemble playing.
-You can practice ensembles with just one iPhone.
-You can play hand-cranked music by reading roll sheet socre with the camera*.
-You can play hand-cranked music by reading  the rotating circle with the camera*.
-You can print roll music score for hand-cranked music box (40mm/70mm width) as PDF file*.
-You can print music score for disc-type hand-cranked music boxes as a PDF file*.
* In-app purchase ($0.99) will add more functions. 
** In-app purchase ($3.99) will add more functions.

## Rankings

- #2,144,813 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1568006330)