# Pocket Organ C3B3

> Virtual Hammond Organ synthesizer with realistic tonewheel and rotary speaker effects. (iPhone/iPad app by insideout ltd..)

- Source: https://appshunter.io/ios/app/pocket-organ-c3b3/id342144696 (this page in markdown: same URL + `.md`)
- Developer: [insideout ltd.](https://appshunter.io/developer/315046293)
- Category: Music, Entertainment
- Price: $0.99 with in-app purchases
- Rating: 4.10/5 from 14 App Store ratings · 212 written reviews indexed
- Age rating: +4
- Requires: iOS 7.0 · 31 MB
- Languages: American English
- Released: 2009-12-18
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pocket-organ-c3b3/id342144696/reviews.md

## What is Pocket Organ C3B3?

Pocket Organ C3B3 is a musical keyboard application for iPad/iPhone/iPod touch that simulates the Hammond Organ. The sound is generated with the synthesis of the waveforms from "Virtual Tonewheel System" controlled by 9 drawbars like the actual Hammond Organ. You will be surprised at the real sound generated from this App!  Pocket Organ C3B3 is a Hammond Organ in your pocket or bag

Pocket Organ C3B3 has a rotary speaker effect like the Leslie speaker, which adds amazing realistic character and spatial depth on your organ playing. This effect can be changed to Fast (Tremolo), Slow (Chorale), or even Off (brakes). Visit our website to listen to the realistic and authentic sound!

Features:
- Authentic emulated sounds generated from "Virtual Tonewheel System" mixed by sliding 9 drawbars
- 61key + 61key, 5-octave Dual Keyboards with switchable key width
- Scrollable Keyboard that can be configured to your own octave key range on screen with 4 preset buttons
- Key transpose function (You can play a music of any key in the key of C)
- You can select the Keyboard scale of normal, minor Pentatonic, major Pentatonic, minor Blues, major Blues
- Rotary Speaker effect can be changed to Fast (Tremolo), Slow (Chorale), or even Off (brakes).
- Harmonic Percussion effect with adjustable decay, 2nd and 3rd harmonic
- Keyclick noise effect
- Built-in Reverb that simulates spring reverb
- Overdrive effects
- Scanner vibrato & chorus
- Shake your iPad/iPhone to play spring shock (reverb crash) effect like Jon Lord (keyboard player of Deep Purple) or Keith Emerson (a member of the Emerson, Lake & Palmer, ELP).
- iPhone's built-in accelerometer gives you amazing glissando effect control.
- 20 Factory Presets containing typical settings used by Rock, Jazz or Gospel Sounds
- You can add the User Memory Bank that allows you to store your own 20 patches (drawbars & effects settings) & Preset Packages with In App Purchase.
- Pocket Organ C3B3 is programmed by Shinya Kasatani, the creator of best selling iPhone App "PocketGuitar" and is designed by Junichiro Yamasaki of "Super Manetron".

## Key features

- Virtual Tonewheel System sound generation
- Rotary speaker effect (Fast, Slow, Off)
- Dual 5-octave keyboards
- Customizable keyboard scales
- Harmonic Percussion and Keyclick effects
- Overdrive and Reverb effects
- Accelerometer-controlled effects

## Pricing and in-app purchases

Base price: $0.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| User Memory Bank | $0.99 | one-time |
| Progressive Rock Pack | $0.99 | one-time |
| Hard Rock Pack | $0.99 | one-time |
| Super Rock Selection | $0.99 | one-time |
| Great Rock Selection | $0.99 | one-time |
| Reggae & Psychedelic Pack | $0.99 | one-time |
| Jazz & Gospel Pack | $0.99 | one-time |


## What do users think of Pocket Organ C3B3?

Overall sentiment: mixed

**Pros**

- 🎹 Authentic Hammond B3 organ sound quality
- 💰 Affordable price point for professional-grade instrument
- 🎛️ Comprehensive drawbar and control customization
- 🎵 Excellent Leslie rotary speaker effect (slow setting)
- ⌨️ Low latency MIDI keyboard support
- 🎚️ Detailed MIDI implementation with extensive CC mapping
- 🎼 Percussion, vibrato, and chorus effects included
- 📱 Portable Hammond organ solution
- 🔧 Responsive and intuitive user interface
- 🎧 Great sound through external amplification

**Cons**

- 🐛 Duplicate note issues on certain keys
- 🐛 Notes occasionally stick and don't release
- ⚠️ Fast Leslie speed sounds unrealistic and too fast
- ⚠️ Lack of app updates and maintenance
- ⚠️ Poor inter-app audio support (Audiobus, background audio)
- ⚠️ Inconsistent MIDI channel handling (receives all channels)
- ⚠️ Leslie effect lacks realism compared to real hardware
- ⚠️ Sound quality inconsistent across different presets
- ⚠️ Limited documentation and customer support
- ⚠️ Crashes and stability issues reported
- ⚠️ Preset loading system confusing and buggy

**Commonly reported bugs**

- Duplicate notes on same keys (E/F, A/Ab/B)
- Notes stick and don't release properly
- Crashes when playing multiple notes simultaneously
- Audiobus initialization failure
- Inter-app audio compatibility issues
- MIDI channel receives all channels instead of specific ones
- Preset packs fail to load correctly
- App stops functioning when another app is opened
- Swell pedal doesn't work with external keyboards
- iRig Keys PRO register/octave repetition issue
- iOS 8+ compatibility problems
- App crashes on iPad 2 and older devices
- Four-finger swipe gesture causes keyboard malfunction
- Latency issues when playing multiple keys
- Reverb crash volume too loud and non-adjustable
- App goes to sleep while playing via MIDI

**Most requested features**

- Adjustable Leslie speed control (slow/fast customization)
- Expression/sustain pedal MIDI support
- Bluetooth pedal control for Leslie speed switching
- Background audio playback when app is minimized
- Audiobus and inter-app audio support
- Swell pedal MIDI control
- Configurable MIDI channel selection per manual
- Recording and playback functionality
- Retina display support
- Resizable keyboard with adjustable key width
- Screen rotation support
- Full Leslie bypass option
- Tonewheel leakage control for authentic 60s sounds
- Separate percussion control for upper/lower manuals
- MIDI data transmission (not just receive)
- Mod wheel and pitch wheel assignments
- Hide on-screen keyboards for MIDI-only use
- Unified control view (drawbars, percussion, vibrato together)

## Recent user reviews (10 of 212)

All indexed reviews: https://appshunter.io/ios/app/pocket-organ-c3b3/id342144696/reviews.md

### 4/5 — MacBookで使えるようにして欲しいです

*2026-04-19*

MOOG MODEL DアプリのようにMacBookで使えるようにして欲しいです。素晴らしいアプリ。

### 1/5 — which scale ?

*2026-02-28*

could not do even one normal scale, two contiguous notes giving same sound.

### 1/5 — Don’t want it

*2025-12-24*

Don’t want it no more

### 1/5 — Not a good organ

*2024-06-03*

I need my money back

### 3/5 — no midi setting?

*2024-02-02, version 2.1.0*

I just downloaded the app on ipad, I am trying to setting up the midi but no way. No setting button anywhere, please fix it cause the app sounds great. (and what about audiobus ?) thanks.

### 1/5 — Me cobraron mas dinero

*2023-05-31, version 2.1.0*

La aplicación dice que cuesta MXN$19.00 pesos mexicanos y al realizar el pago me cobraron MXN$299.00, quiero la devolución de mi dinero por favor.
The app shows a price of MXN$19.00 Mexican Pesos, but, when making the payment, they charged me MXN$299.00 Mexican Pesos, I want the return of my money please.

### 3/5 — Spiradisch kein Ton

*2021-11-28, version 2.1.0*

Ich bin mit der App im Großen und Ganzen zufrieden, benutze sie allerdings nur zum Üben zwischendurch. Muß ich nicht jedes Mal das Keyboard einschalten. Nur, was mich stört, ist, daß sporadisch kein Ton erklingt, muß das iphone resetten, damit es wieder funktioniert.

### 5/5 — Really nice B3 simulator

*2021-04-22*

I use this app with a MIDI keyboard, and it makes a lovely, easily transported setup for jamming with friends. The B3 sound is decent. I think the rotary speaker effect sounds way too fast on the fast setting.  I wish this was user adjustable. I also wish I could dial back the vibrato/chorus effect. But this definitely beats hauling 400 lbs of Hammond and Leslie around.

### 5/5 — Need help

*2021-03-17*

I am having a very hard time loading the presets that a bought. Can anyone help.  I’m missing something.

For one the app doesn’t have a u1 or U2 bank  only 1 to 6.

And how do I Play or install the patch names like Jerusalem? yes I already purchased it.

Yes this is flustrating.

### 1/5 — 残念…

*2020-12-21*

良くなっていくのでしょう。

## Frequently asked questions about Pocket Organ C3B3

### What is Pocket Organ C3B3?

Pocket Organ C3B3 is a musical keyboard application for iPad, iPhone, and iPod touch that accurately simulates the sound and functionality of a Hammond Organ. It utilizes a "Virtual Tonewheel System" to generate authentic sounds and includes a realistic rotary speaker effect.

### What are the key features of this app?

Key features include authentic tonewheel sound generation controlled by 9 drawbars, a rotary speaker effect with adjustable speeds, dual 5-octave keyboards, customizable scales, harmonic percussion, keyclick, overdrive, reverb, and accelerometer-controlled effects. It also comes with factory presets and the ability to save custom settings.

### How much does Pocket Organ C3B3 cost?

The base application is free to download. Additional features, such as the User Memory Bank for storing custom patches and Preset Packages, are available through in-app purchases.

### What devices is Pocket Organ C3B3 compatible with?

Pocket Organ C3B3 is designed for iPad, iPhone, and iPod touch devices. It leverages device-specific features like the accelerometer for enhanced control.

### Who would benefit from using this app?

This app is ideal for musicians, keyboard players, and music enthusiasts who want to experience the sound of a Hammond Organ on the go. It's suitable for practicing, composing, or even live performance, offering a portable and versatile virtual instrument.

## Version history (last 5 releases)

### 2.1.0 — 2016-08-19

This update from Apple will improve the functionality of this app. No new features are included.

Add  MIDI Channel Select Function
How to set channel.
(1) Click "Setting" App
(2) Click "Pocket Organ C3B3"
(3) Set Channel Swell (Upper Keys) or/and  Great (Lower Keys) or/and  Pedal (Pedal Keys)

### 2.0.0 — 2016-04-20

- Adjustment of the rotary effect and key click
- New icon

### 1.7.2 — 2015-10-24

Corrected the mistake of setting in Audiobus.

### 1.7.0 — 2015-10-12

- Optimized on iOS 9
- Bug fixes

### 1.6.1 — 2014-11-07

- Optimized appearance on iOS 7 / 8
- Supports Audiobus and Inter-App Audio (requires iOS 7 or later)

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## More apps by insideout ltd.

- [Super Manetron](https://appshunter.io/ios/app/super-manetron/id603086193)
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All apps by insideout ltd.: https://appshunter.io/developer/315046293

## Related topics

[hammond organ](https://appshunter.io/ios/topics/hammond-organ)

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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 2026-08-26.*