# Voice Synth Modular vs Boimero

The clearest difference is review sentiment: Boimero at 88% against Voice Synth Modular's 41%. Boimero also leads on update cadence (daily vs monthly) and rating (4.6 vs 4.2). Voice Synth Modular's advantage is ads (none vs shown) and ratings volume (3.1K vs 578). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Voice Synth Modular sells 2 one-off in-app purchases and Boimero sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Boimero holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Voice Synth Modular has 3.1K ratings behind it against 578, so its average is the more settled of the two. Written reviews point the same way: 41% of Voice Synth Modular's written reviews are positive against 88% of Boimero's.

Voice Synth Modular ships an update monthly, Boimero daily. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Voice Synth Modular | Boimero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (3.1K ratings)](https://appshunter.io/ios/app/voice-synth-modular/id767295197/reviews) | **[4.6 (578 ratings)](https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951/reviews)** |
| Number of ratings | **3.1K** | 578 |
| Positive reviews | 41.3% of reviews | **88.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 66 MB | 406 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qneo](https://appshunter.io/developer/319839998) | [Waffle, LCC](https://appshunter.io/developer/1777946699) |

## What reviewers say

### Voice Synth Modular

[App page](https://appshunter.io/ios/app/voice-synth-modular/id767295197)

Transform your voice into a musical instrument with a suite of advanced audio effects. Create robotic voices, harmonies, and unique soundscapes using only your voice. Save and share your creations, or integrate them into your digital audio workstation.

**Highlights:** Live voice processing, Vocoders, Auto Pitch, Harmonizing Pitch Shift, Speed-Shift Sampling, Create organic soundscapes, Save and share creations

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Tools | Free | one-time |
| Upgrade | $8.99 | one-time |

**What reviewers like**

- 🔥 Powerful voice modulation
- 🎨 Huge array of filters and sounds
- 🎹 Ability to create beats from voice
- 🎶 Excellent for vocal performances
- 👍 Intuitive and user-friendly interface

**What reviewers complain about**

- 💰 Paid features hidden behind paywall
- 🔒 Confusing upgrade process
- 🐛 Unreliable recording and playback
- 🤔 Unintuitive workflow and lack of guidance
- 🤷‍♀️ Inconsistent functionality across updates

**Reported bugs**

- Crashes and freezes when using certain features
- Microphone not detected or working properly
- Imported audio files not playing back correctly
- Presets and settings not saving or loading properly

**Requested features**

- Ability to record and process own voice
- Deeper integration with music production apps
- More customization and preset options
- Better documentation and tutorials
- System audio capture and processing


### Boimero

[App page](https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951)

Create original songs without singing by arranging notes and lyrics on a piano roll. This app generates AI singing voices using advanced models, allowing for offline music production on your mobile device. It supports various file formats and voicebanks for flexible music creation.

**Highlights:** 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

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ボイメロプレミアム | $0.99 | per month |
| ボイメロプレミアム | $1.99 | per month |
| ボイメロプレミアム | $5.99 | per year |
| ボイメロプレミアム | $9.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


## Frequently asked questions

### Is Voice Synth Modular free?

Voice Synth Modular is free to download, with in-app purchases available.

### Is Boimero free?

Boimero is free to download, with in-app purchases available.

### Which has better reviews, Voice Synth Modular or Boimero?

Boimero is rated higher. Voice Synth Modular averages 4.2 out of 5 from 3.1K ratings, while Boimero averages 4.6 from 578 ratings.

### Do Voice Synth Modular or Boimero have ads?

Boimero shows ads; Voice Synth Modular does not.

### Which is updated more often, Voice Synth Modular or Boimero?

Voice Synth Modular ships an update monthly, and Boimero daily. Most recently, Voice Synth Modular was updated on October 26, 2026 and Boimero on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*