# KARAOKE GYM — Offline Lyrics, Vocal Removal

> Offline karaoke practice app with vocal removal, tempo/key adjustment, and A-B repeat. (iPhone/iPad app by Masanori Katsuta.)

- Source: https://appshunter.io/ios/app/karaoke-gym/id1450063046 (this page in markdown: same URL + `.md`)
- Developer: [Masanori Katsuta](https://appshunter.io/developer/320172788)
- Category: Music, Utilities
- Price: $0.99 (on sale, was $1.99)
- Rating: 3.00/5 from 2 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 1 MB
- Languages: American English, Japanese
- Released: 2019-02-18
- Data updated: 2026-08-14
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/karaoke-gym/id1450063046/reviews.md

## What is KARAOKE GYM?

This is an app to practice karaoke using songs in your device's music library.
You can practice it carefully with songs taken from iTunes purchased music and music CDs.

It is convenient to practice difficult phrases.
Let's master new songs earlier than anyone else.

- You can practice the following
· Practice by removing vocals
· Practice harmony part by removing vocals
· Practice by slowing the tempo
· Repeated practice of A-B section
· Practice according to your key
· Search the lyrics by Web View
· Practice even offline

- Features
· Vocal can be removed and played.
· You can change the playback tempo.
· You can change the playback key.
- Repeat playback can be performed by specifying an interval.
· Lyrics can be searched by Web View.
· Capture and save lyrics automatically.
· You can display lyrics saved offline.

-Configuration
· AB repeat setting: ON / OFF, interval specification
· Song Pointer:  Moving by Slider Control
· Key: 1 octave to + 1 octave and in semitone units
· Tempo: 10% to 500%
· Vocal removal: ON / OFF

- Settings when removed vocals
· Boost: Amplifies the volume dropped by vocal removal.
· Stereo effect: In addition to general center cancellation processing, vocal elimination is a unique process to suppress midrange. Mixing the two will create a stereo effect.
• Vocal elimination frequency range: Sets the lower and upper limits of the frequency range that suppresses the midrange.

-Notes
This app can not load DRM protected songs downloaded by music streaming service such as Apple Music and Spotify.
Also, songs on iCloud can not be loaded. It is necessary to download it in advance.

## Key features

- Vocal removal
- Tempo adjustment
- Key adjustment
- A-B section repeat
- Offline lyric display
- Web lyric search

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/karaoke-gym/id1450063046/reviews.md

### 5/5 — いつも、ありがとうございます

*2026-04-08*

はい

### 5/5 — よかったです♪

*2023-09-07*

A-B間リピートやボーカル除去など便利な機能があり性能も良い。ライブラリから好きな曲を選べるので原曲に近いのもよかった。ハモリの練習にとても役立ちました。録音機能が備わってればさらに最高です。ぜひ追装ご検討ください。

### 5/5 — Great for isolating instruments

*2023-03-05*

So I had been looking for a way to isolate bass and guitar parts in songs that I like. Perhaps this can be done with EQ but none of the music players with EQ that I have tried could really remove vocals and other instruments quite like this one.

EQ apps that I own don’t have access to my music library so this is very convenient.The ability to loop sections is great too.

I don’t know that I would use the app for an actual karaoke session, but for learning parts, this is definitely great. 

It would be nice if this could record wav for use with the “Moni” apps from the dev, or somehow add their functionality here.

### 1/5 — ボーカル

*2021-02-05*

ボーカル除去しても、はっきりとボーカルの声が残る

### 1/5 — Not impressed

*2021-01-04*

Can hear the vocal , you can’t on other app I downloaded disappointed!

### 2/5 — iTunesと連携しない

*2020-08-22*

iTunesでに入ってるがこちらのアプリでは再生できません。どうしたら連携しますでしょうか？

### 2/5 — 使えない

*2020-06-03*

iPhone7なのですが、🎵ボタンを押しても反応がありません。今のところただ120円を払っただけになっています💦改善お願いします。

**Developer response:** ご購入ありがとうございます。ホーム画面の「設定」を開き、「プライバシー」の「メディアとApple Music」にある「カラオケジム」のスイッチがオンになっているかご確認ください。

### 4/5 — 意外と良い

*2019-09-30*

ボーカル除去機能感動しました。ハモリのコーラスの音程も除去されずに残っていて、いい感じに歌えます。

### 1/5 — 曲が流れない詐欺かと思ったけどどうなのかな？(不安)

*2019-08-20*

曲が流れない。(聞こえない)
なんでか分からない。
流す方法はないのか？

**Developer response:** 着信／サイレントボタンをご確認いただけますでしょうか。
よろしくお願いいたします。

### 1/5 — Voice off function does not work right.

*2019-06-12*

The main reason I got this is to turn off voice so I can host a karaoke party.  Hope it works but no!

## Frequently asked questions about KARAOKE GYM

### What is KARAOKE GYM?

KARAOKE GYM is a paid app designed for practicing karaoke using songs from your device's music library. It offers features like vocal removal, tempo and key adjustments, and A-B section repetition for focused practice.

### Can I use KARAOKE GYM with songs from streaming services like Apple Music or Spotify?

No, KARAOKE GYM cannot load DRM-protected songs from streaming services like Apple Music and Spotify. You must use music purchased and downloaded directly to your device, or from music CDs.

### Does KARAOKE GYM have ads?

No, KARAOKE GYM does not contain advertisements. It is a paid application that offers an ad-free experience for its users.

### How much does KARAOKE GYM cost?

KARAOKE GYM is available for a one-time purchase of $0.99. This grants you access to all of its features for offline karaoke practice.

### What devices is KARAOKE GYM compatible with?

KARAOKE GYM is compatible with iPhone, iPad, and iPod devices. It is designed for iOS users looking to enhance their singing practice.

### How often is KARAOKE GYM updated?

The latest version of KARAOKE GYM is 1.0.4, last updated on April 2, 2024. Updates typically focus on bug fixes and performance improvements.

### What is the age rating for KARAOKE GYM?

KARAOKE GYM has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.

### Can I practice specific parts of a song with KARAOKE GYM?

Yes, KARAOKE GYM allows you to practice specific sections of a song using the A-B repeat feature. You can set custom intervals to repeatedly practice difficult phrases or sections.

## Version history (last 4 releases)

### 1.0.4 — 2024-04-02

Compatible with the latest iOS.

### 1.0.03 — 2019-04-04

Support background playback

### 1.0.02 — 2019-02-18

Update Launch Image

### 1.0.01 — 2019-02-17

No release notes.

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## More apps by Masanori Katsuta

- [See-Through Camera](https://appshunter.io/ios/app/see-through-camera/id545626309)
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- [Ripple Camera](https://appshunter.io/ios/app/ripple-camera/id939375856)

All apps by Masanori Katsuta: https://appshunter.io/developer/320172788

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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 2026-08-14.*