# Roll Player Piano — Hand-cranked player piano app

> Hand-cranked player piano app (iPhone/iPad app by Takatoshi Ota.)

- Source: https://appshunter.io/ios/app/roll-player-piano/id1568006330 (this page in markdown: same URL + `.md`)
- Developer: [Takatoshi Ota](https://appshunter.io/developer/1568006332)
- Category: Music, Entertainment
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 213 MB
- Languages: American English, Japanese
- Released: 2021-06-13
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/roll-player-piano/id1568006330/reviews.md

## What is Roll Player Piano?

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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| MIDI file import | $3.99 | one-time |
| Using the camera | $0.99 | one-time |



## Version history (last 5 releases)

### 3.0.11 — 2026-08-03

- When the "Media type" of the score to be printed is "Piano Roll(40mm)," the size of the score has been revised to make it easier to recognize in the app.

### 3.0.10 — 2026-04-22

- We have revised the margin layout for printed “Turntable(90mm)” sheet score to make it easier to adjust camera settings. 
- We have implemented a level indicator feature to display the device's tilt, making it easier to position the device during hand-crank performance mode.

### 3.0.9 — 2026-03-28

- We have added A5 as a paper size option for sheet score of the “Toy Disc” type. 
- We have added A5 and A6 as paper size options for sheet score of the “Turntable(90mm)” type. 
- We have added a "Scale" option to the print settings for sheet score of the “Toy Disc” and “Turntable(90mm)” types.

### 3.0.8 — 2026-03-17

- We have adjusted the size of the printed disc-shaped sheet score.

### 3.0.7 — 2026-03-12

- We have revised the layout of printed disc-shaped sheet score.

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## Related topics

[roll player piano](https://appshunter.io/ios/topics/roll-player-piano) · [rolling piano](https://appshunter.io/ios/topics/rolling-piano) · [roll player](https://appshunter.io/ios/topics/roll-player)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-10.*