# Boimero: Vocal Synth Studio — Make songs without singing

> Mobile vocal synthesis and music creation app for generating songs without recording vocals. (iPhone/iPad app by Waffle, LCC.)

- Source: https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951 (this page in markdown: same URL + `.md`)
- Developer: [Waffle, LCC](https://appshunter.io/developer/1777946699)
- Category: Music, Entertainment
- Price: Free with in-app purchases
- Rating: 4.60/5 from 561 App Store ratings · 672 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 383 MB
- Languages: American English, Japanese
- Released: 2024-11-05
- Data updated: 2026-09-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951/reviews.md

## What is Boimero?

Boimero is a vocal synthesis and music creation app that lets you make original songs without recording your own voice.

Simply arrange notes on the piano roll and enter lyrics to generate a singing voice. Whether you are new to songwriting or an experienced creator, Boimero makes it easy to produce music on your iPhone or iPad.

Voice generation runs on your device, so you can compose songs and generate vocals offline.

KEY FEATURES
• Create melodies with an intuitive piano roll
• Enter lyrics for individual notes
• Build songs with multiple tracks
• Import UTAU voicebanks
• Generate AI singing voices with DiffSinger models
• Use compatible VOICEVOX models
• Import MIDI, UST, and MusicXML files
• Adjust tempo, volume, and other song settings
• Export and share your finished audio

BOIMERO IS GREAT FOR
• Creating songs without recording your own voice
• Making vocal-synth and character-voice music on mobile
• Working with UTAU and DiffSinger voice models
• Editing MIDI and UST files away from your computer
• Learning vocal synthesis and songwriting

Turn your notes and lyrics into a singing voice. Create music freely with Boimero.

Features and available voices may vary depending on your device, plan, and installed models.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/us/terms.html

## Key features

- Intuitive piano roll for melody creation
- Lyric input for individual notes
- Multi-track song building
- Import UTAU, VOICEVOX, MIDI, UST, and MusicXML
- AI singing voice generation with DiffSinger
- Offline voice generation
- Export and share finished audio

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| ボイメロプレミアム | $1.99 | per month |
| ボイメロプレミアム | $0.99 | per month |
| ボイメロプレミアム | $5.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ボイメロプレミアム | $9.99 | one-time |


## What do users think of Boimero?

Overall sentiment: positive

**Pros**

- 👍 Easy to use
- 🎨 Helpful for creating music
- 💡 Good mobile vocaloid alternative
- 🎶 Enjoyable for composing songs

**Cons**

- 🐛 Buggy and glitchy at times
- 💰 Too many ads and paid features
- 🌐 Lack of English support

**Commonly reported bugs**

- Lyrics not working as expected
- Audio playback issues after watching ads
- Tutorial/help content not loading

**Most requested features**

- More voicebank options
- Improved pitch/tuning controls
- Better lyric integration
- English language support

## Recent user reviews (10 of 672)

All indexed reviews: https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951/reviews.md

### 5/5 — 优秀

*2026-08-31*

算是一个比较廉价的搞术力口的方式了，但是我目前没玩明白怎么去微操每一个音符的音量大小，还有就是得看点广告，这个问题不大。目前里面有免费自带的声库。

### 5/5 — 大好きなのです！

*2026-08-31*

MIDIファイルも読み込めるし、広告さえ見れば好きなモデルを読み込めるのです。UTAUがスマホでできるのはすごくいいので、愛用しているのです。だけど電池の減りが早いし、すぐ本体があつ〜くなるのです。まあしょうがないとは思うのです。あと、無料だとピッチの編集ができないのです。それが辛いのです🥲‎なんか条件付きでもいいので、無料で少しでもできるようになってくれると嬉しいのです！

### 4/5 — 像人一样的美味软件

*2026-08-28*

这个软件太美味了，十分好吃，非常建议多囤点，然后顺便把你的手机或者平板也吃掉

### 5/5 — 好用_(:з」∠)_

*2026-08-27*

挺好用的一款软件，也是我第一次接触到的调音软件，之前是在抖音上看到有人推荐然后就下载了，毛豆很萌，有不同情绪的声库，用着确实不错很顺手，但是有的时候需要看广告，里面的广告有一点点多╮(╯_╰)╭。导入声库也可以，需要先看广告赚积分，之前下载了teto的声库也能导进去。也遇到了点问题，现在一共导入了三种音源，但是只能看到两种，不知道是什么原因求解答。（导入七次就可以画音高线了，开始以为是免费的。。）刚打开页面会有一点卡等两三分钟就好了，总体来说还是很推荐的

### 4/5 — 挺好

*2026-08-24*

就是语音合成和选因素有点瑕疵和麻烦

### 5/5 — Best Mobile UTAU Studio!

*2026-08-22*

This app is absolutely amazing! It has a few cons, but many pros. So, for the fully free version, you get to import an UTAU for 10 points (which you need to watch 10 ads for). You can’t tune the UTAU, which isn’t great, but it is still fun and is functional. For the Premium version, it’s the best. You can import as many UTAUs as you would like, and you can tune them! Plus, it’s only 1$ per month/10$ for full-time! I do have trouble adding growl to the UTAU’s voice, as the vibrato slider is sort of randomized. Other than that, it’s great. Definitely recommend the premium.

### 4/5 — 希望能把每天看广告领积分的次数搞多一点

*2026-08-21*

整体用着还可以吧，就是搞那个歌手说话的时候有点麻烦，然后其他都可以，就是希望能把每天看广告领积分的次数多搞一点

### 5/5 — 아니 버그고쳐줘요 좀

*2026-08-21*

아니 원래 모바일로 조교를 할수 있고에 굉장함을 느끼고 이것만으로도 즐겨야 겠다 했는데 버그 갓겜이라 뭐 어찌해야 할지 모르겠음. 현재 아이폰으로 사용하는 유저인데 앱 접속 할때마다 쿠키런 크럼블 광고소리만 계속 쳐나서 조교를 못하고 있어요; 애초에 조교하다가 앱 나가기만해도 멈추는 앱인데 계속 쿠키런 크럼블광고 소리만 귀에 쳐박아 넣으니까 노이로제만 계속 올거 같고 정신 나갈거 같고 와 진짜 이거 하나만 고쳐주세요 진심

### 5/5 — Best vocaloid alt!

*2026-08-17, version 2.6.31*

Works awesome!

### 5/5 — 非常好用

*2026-08-16*

非常好用，这个真的非常好用，还可以导入深库

## Frequently asked questions about Boimero

### How does Boimero generate singing voices?

Boimero uses advanced AI models like DiffSinger to generate singing voices based on the notes and lyrics you input. This process runs on your device, allowing for offline vocal synthesis.

### Can I use my own voicebanks with Boimero?

Yes, Boimero supports importing UTAU voicebanks and compatible VOICEVOX models. This allows for a wide range of vocal styles and character voices in your music.

### Does Boimero work offline?

Yes, the voice generation feature in Boimero runs on your device, enabling you to compose songs and generate vocals even without an internet connection.

### What file formats can Boimero import?

Boimero can import MIDI, UST, and MusicXML files, making it easy to bring existing projects or melodies into the app for vocal synthesis.

### What are the subscription plans for Boimero?

Boimero offers premium subscription plans starting at $0.99 per month, with options for $1.99/month and $5.99/year. These plans likely unlock additional features or content.

### Does Boimero have ads?

Yes, Boimero contains advertisements. Users have noted that there are too many ads and paid features, which can impact the user experience.

### What devices is Boimero compatible with?

Boimero is available for iPhone, iPad, and iPod. It is designed for mobile music creation on Apple devices.

### How often is Boimero updated?

The latest version of Boimero is 2.6.25, and it was last updated on August 1, 2026. This indicates a relatively active development cycle.

## Version history (last 5 releases)

### 2.6.38 — 2026-09-03

- Bug fixes

### 2.6.37 — 2026-09-02

- Bug fixes

### 2.6.36 — 2026-09-02

- Bug fixes

### 2.6.35 — 2026-08-30

- Bug fixes

### 2.6.34 — 2026-08-28

- Fixed voicebanks that carry the octave in every alias (e.g. Hatsune Miku) failing to sing at all
- Fixed exports being refused as "no audio tracks" while the audio existed
- Fixed audio going missing after changing tempo, drawing pitch, or setting a UTAU voice suffix
- The refusal message now says which case you hit, and how to recover when audio must be rebuilt
- No ad is shown when an export cannot proceed
- MIDI import now asks when the file's tempo differs from the project

## Apps similar to Boimero

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mobile VOCALOID Editor](https://appshunter.io/ios/app/mobile-vocaloid-editor/id947797108) | 2.9 (114) | Free | Music |
| [Pocket Singer - My OC sings！](https://appshunter.io/ios/app/pocket-singer-my-oc-sings/id1665512424) | 1.3 (667) | Free | Music |
| [RecStar](https://appshunter.io/ios/app/recstar/id6471727990) | 4.0 (13) | Free | Music |
| [MusicPutty - Vocal Tune](https://appshunter.io/ios/app/musicputty-vocal-tune/id6444390100) | 4.3 (127) | Free | Music |
| [VoiSona](https://appshunter.io/ios/app/voisona/id6478200421) | 4.2 (114) | Free | Music |
| [Sound Game Training](https://appshunter.io/ios/app/sound-game-training/id1088874473) | 4.9 (311) | Free | Music |

## More apps by Waffle, LCC

- [シャッフル](https://appshunter.io/ios/app/id6749563418)
- [oboo \| 撮るだけで作れる単語帳アプリ](https://appshunter.io/ios/app/oboo/id6757411388)
- [ピクチャークラフト](https://appshunter.io/ios/app/id6758012751)
- [Focus Timer シンプルなタイマー](https://appshunter.io/ios/app/focus-timer/id6759997921)
- [NumRush](https://appshunter.io/ios/app/numrush/id6760337718)

All apps by Waffle, LCC: https://appshunter.io/developer/1777946699

## Related topics

[vocaloid maker](https://appshunter.io/ios/topics/vocaloid-maker) · [vocaloid singing](https://appshunter.io/ios/topics/vocaloid-singing) · [vocaloid editor](https://appshunter.io/ios/topics/vocaloid-editor) · [mobile vocaloid editor](https://appshunter.io/ios/topics/mobile-vocaloid-editor) · [zundamon](https://appshunter.io/ios/topics/zundamon) · [utauloid](https://appshunter.io/ios/topics/utauloid) · [vocaloid](https://appshunter.io/ios/topics/vocaloid) · [vomo2](https://appshunter.io/ios/topics/vomo2)

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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 2026-09-08.*