# Sky Studio vs Boimero

The clearest difference is in-app purchases: Sky Studio at none against Boimero's 4. Sky Studio also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). Boimero's advantage is update cadence (daily vs every 2 weeks) and review sentiment (88% vs 79%). On price, rating and device support there is nothing between them.

Both are free to download. Boimero sells 4 in-app purchases, starting at $0.99 per month. Sky Studio asks for nothing beyond the download.

Boimero holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 118 and 579 respectively. Written reviews point the same way: 79% of Sky Studio's written reviews are positive against 88% of Boimero's.

Sky Studio ships an update every 2 weeks, Boimero daily. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sky Studio | Boimero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (118 ratings)](https://appshunter.io/ios/app/sky-studio/id1522241329/reviews) | **[4.6 (579 ratings)](https://appshunter.io/ios/app/boimero-vocal-synth-studio/id6737790951/reviews)** |
| Number of ratings | 118 | **579** |
| Positive reviews | 79.3% of reviews | **88.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 80 MB | 396 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JoneRyeol Kim](https://appshunter.io/developer/1522241331) | [Waffle, LCC](https://appshunter.io/developer/1777946699) |

## What reviewers say

### Sky Studio

[App page](https://appshunter.io/ios/app/sky-studio/id1522241329)

Create, practice, and play sheet music for "Sky: Children of the Light." Features include composing with editing tools, practicing with adjustable settings, and an instrument pad for free play. Supports multiple music file formats.

**Highlights:** Compose sheet music, Practice sheet music, Instrument pad mode, Save and load scores, Metronome, Multiple supported formats (JSON, ABC, MIDI)

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for learning music
- 👍 Easy to use and practice
- 👍 Helpful for beginners
- 👍 Useful for practicing outside the game
- 👍 Good for composing music

**What reviewers complain about**

- 🐛 Sound issues (no sound, delayed sound)
- 🐛 Saved work corrupted/jumbled
- 🐛 Instruments don't sound like in-game
- 🐛 App size issues (too big, not resizable)
- 🐛 Pitch is too high compared to the game

**Reported bugs**

- No sound or intermittent sound
- Saved songs become corrupted or jumbled
- Autoplay is out of sync with screen display
- Input method takes over the entire screen when saving compositions
- App crashes or closes unexpectedly

**Requested features**

- Make the app resizable
- Add iPad accessibility
- Sync in-game instruments
- Add more instruments (Pipa/Chinese Lute, Horn, etc.)
- Add Game Center/Apple/Facebook sign-in for data saving


### 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 Sky Studio free?

Sky Studio is free to download, with no in-app purchases.

### Is Boimero free?

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

### Which has better reviews, Sky Studio or Boimero?

Boimero is rated higher. Sky Studio averages 4.4 out of 5 from 118 ratings, while Boimero averages 4.6 from 579 ratings.

### Do Sky Studio or Boimero have ads?

Boimero shows ads; Sky Studio does not.

### Which is updated more often, Sky Studio or Boimero?

Sky Studio ships an update every 2 weeks, and Boimero daily. Most recently, Sky Studio was updated on October 29, 2026 and Boimero on October 30, 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.*