# Handy Guitar Lab for B2 FOUR

> Remote control app for B2 FOUR effects and amp emulator. (iPhone/iPad app by ZOOM Corporation.)

- Source: https://appshunter.io/ios/app/handy-guitar-lab-for-b2-four/id1670829465 (this page in markdown: same URL + `.md`)
- Developer: [ZOOM Corporation](https://appshunter.io/developer/566291782)
- Category: Music, Entertainment
- Price: $0.99
- Rating: 3.30/5 from 4 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 12 MB
- Languages: American English, Japanese
- Released: 2023-03-21
- Data updated: 2026-09-03
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/handy-guitar-lab-for-b2-four/id1670829465/reviews.md

## What is Handy Guitar Lab for B2 FOUR?

Handy Guitar Lab for B2 FOUR is a remote-control app specifically designed for the B2 FOUR EFFECTS & AMP EMULATOR. 
With the app, you can download new effects, and manage which effects are installed on the device.
You can also view and download new patches, customize the patch list on the device and create backups for safekeeping. 
The app gives you the ability to edit existing patch memories as well as create new patches from scratch. 
The app will let you know when firmware updates are available and install them for you if you choose. 
The app supports iOS/iPadOS VoiceOver to provide accessibility for the visually impaired.

* Handy Guitar Lab for B2 FOUR connects to your device with a USB (Type-C) cable. Use a Lightning to USB Camera Adapter to connect to an iOS/iPadOS device with a lighting connector.

## Key features

- Download new effects
- Manage installed effects
- View and download patches
- Customize patch list
- Create patch backups
- Edit and create patches
- Firmware updates

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/handy-guitar-lab-for-b2-four/id1670829465/reviews.md

### 2/5 — Just paid for pedal. App should be free

*2026-06-17*

I’m a little surprised I have to pay another $1 after dropping $250 on the pedal

### 3/5 — Works fine but very limited capabilities

*2025-12-28*

The app lets you control the device from your phone, including editing patches. But it doesn’t let you back up and manage your patches, nor does it provide access to patches developed by anyone other than Zoom. Personally I don’t find it easier to edit patches on my phone than on the device, and given that the phone must be connected by a short USB cable it’s not practical for using on stage.

### 5/5 — 使いやすくなりました

*2025-12-23*

iPhone 16e にしたのでこのアプリを買ってみました。本体との接続はiPhoneに付いていたものUSB-C→ USB-Cを使いました。本体の電源はACアダプターから取りました。で、使い勝手はパッチファイルの移動が簡単に出来るのでライブで使う順に並べるのが簡単になりました。あと当たり前ですが、色んなエフェクターの調節が楽になりました。買って良かったです。

### 1/5 — Connexion

*2025-12-09*

Impossible à connecter j’ai investi dans l adaptateur pour connecter à mon iPad 
Et il se passe rien 
Pas top 
L appli ne fonctionne pas

### 1/5 — Connexion impossible

*2025-11-05*

J’ai acheté ce B2four avec l’idée de pouvoir gérer mes effets sur mon téléphone, mais impossible de me connecter avec un simple câble USB3 - Lightning.
D’après le retour du service technique, il faut que j’achète en plus un adaptateur Apple, mais il ne m’ont pas donné la référence.
Je crois que je vais encore en avoir pour 50€ ( si j’ai fait le bon choix d’adaptateur ).
Je laisserai un autre avis si j’arrive à me connecter.

### 1/5 — No!

*2025-03-24*

No connection possible. It needs hours to download the initial effect content. Very disappointing at all

### 4/5 — Not free ??!!

*2025-01-21*

Too bad we have to pay for this app :(

### 1/5 — Permanentely saying: no device detected. therefore not usable.

*2023-11-24*

The title says it all. I‘m very disappointed.

### 4/5 — Must have device connected

*2023-04-04*

I had hoped to be able to get a little preview of what it looks like, what patches are available and what additional effects might be available (as pre-purchase research). However, without a device connected it doesn't do anything. Understandable, but it would be cool if they had an "Offline" mode to mock things up. I get why they don't though.

## Frequently asked questions about Handy Guitar Lab for B2 FOUR

### What is Handy Guitar Lab for B2 FOUR?

Handy Guitar Lab for B2 FOUR is a mobile application designed to remotely control and manage the B2 FOUR EFFECTS & AMP EMULATOR. It allows users to download new effects, manage installed sounds, and customize patch memories.

### How does Handy Guitar Lab for B2 FOUR connect to the B2 FOUR device?

The app connects to the B2 FOUR device using a USB (Type-C) cable. For iOS/iPadOS devices with a lightning connector, a Lightning to USB Camera Adapter is required.

### Can I create my own guitar sounds with Handy Guitar Lab for B2 FOUR?

Yes, you can edit existing patch memories and create entirely new patches from scratch directly within the app. This gives you full control over your guitar tone.

### Does Handy Guitar Lab for B2 FOUR offer firmware updates?

Yes, the app will notify you when firmware updates are available for your B2 FOUR device. You can then choose to install these updates through the app.

### Is Handy Guitar Lab for B2 FOUR accessible for visually impaired users?

Yes, the app supports iOS/iPadOS VoiceOver, providing accessibility features for visually impaired users to navigate and utilize its functions.

### What is the price of Handy Guitar Lab for B2 FOUR?

Handy Guitar Lab for B2 FOUR is a paid application, priced at $0.99. It does not feature in-app purchases or advertisements.

### What devices does Handy Guitar Lab for B2 FOUR support?

The app is supported on iPhone and iPod devices. It is designed for iOS/iPadOS.

### How often is Handy Guitar Lab for B2 FOUR updated?

The app was last updated on March 22, 2023, with version 1.0.0. Further updates will be released by the developer, ZOOM Corporation, as needed.

## Version history (last 1 release)

### 1.0.0 — 2023-03-22

No release notes.

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## More apps by ZOOM Corporation

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All apps by ZOOM Corporation: https://appshunter.io/developer/566291782

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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 2026-09-03.*