# SpaceTheremin vs BLEASS Groovebox

The clearest difference is rating: SpaceTheremin at 4.8 against BLEASS Groovebox's 4.2. SpaceTheremin also leads on review sentiment (100% vs 64%) and in-app purchases (none vs 1). BLEASS Groovebox's advantage is ratings volume (38 vs 4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BLEASS Groovebox sells 1 one-off in-app purchase. SpaceTheremin asks for nothing beyond the download.

SpaceTheremin holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: BLEASS Groovebox has 38 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of SpaceTheremin's written reviews are positive against 64% of BLEASS Groovebox's.

SpaceTheremin ships an update every 2 months, BLEASS Groovebox every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | SpaceTheremin | BLEASS Groovebox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/spacetheremin/id884417701/reviews)** | [4.2 (38 ratings)](https://appshunter.io/ios/app/bleass-groovebox/id1220444178/reviews) |
| Number of ratings | 4 | **38** |
| Positive reviews | **100.0% of reviews** | 64.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 52 MB |
| Requires iOS | **6.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUKIO ONOZUKA](https://appshunter.io/developer/876684692) | [BLEASS](https://appshunter.io/developer/1220444177) |

## What reviewers say

### SpaceTheremin

[App page](https://appshunter.io/ios/app/spacetheremin/id884417701)

Create unique soundscapes by touching and moving your screen to control pitch and cosmic delay effects. Explore various wave shapes and warp options to craft your sonic experience. This app offers a free version with limited multi-touch and a pro version for an ad-free, expanded experience.

**Highlights:** Touch and move screen for pitch control, Cosmic delay sounds, Multi-touch support (2 free, more in pro), Adjustable delay time and feedback, Multiple wave shapes (Sine, Saw, Square, Triangle, Noise), Warp and Softness controls

**In-app purchases:** none


### BLEASS Groovebox

[App page](https://appshunter.io/ios/app/bleass-groovebox/id1220444178)

Create, perform, and compose music with this all-in-one beat studio. Features a multitrack sequencer, synthesizers, and drum machines for intuitive beatmaking and sound design. Optimized for both studio and live performance.

**Highlights:** Multitrack sequencer, Monophonic & polyphonic synthesizers, Drum machines, Sample recording and editing, Real-time performance controls, MIDI and Ableton Link support

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock | $4.99 | one-time |


## Frequently asked questions

### Is SpaceTheremin free?

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

### Is BLEASS Groovebox free?

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

### Which has better reviews, SpaceTheremin or BLEASS Groovebox?

SpaceTheremin is rated higher. SpaceTheremin averages 4.8 out of 5 from 4 ratings, while BLEASS Groovebox averages 4.2 from 38 ratings.

### Do SpaceTheremin or BLEASS Groovebox have ads?

Neither SpaceTheremin nor BLEASS Groovebox shows ads.

### Which is updated more often, SpaceTheremin or BLEASS Groovebox?

SpaceTheremin ships an update every 2 months, and BLEASS Groovebox every 6 weeks. Most recently, SpaceTheremin was updated on October 24, 2026 and BLEASS Groovebox on October 24, 2026.

---

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