# SpaceTheremin vs Musizi

The clearest difference is rating: SpaceTheremin at 4.8 against Musizi's 1.0. SpaceTheremin also leads on in-app purchases (none vs 1) and review sentiment (100% vs 80%). Musizi's advantage is update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

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

SpaceTheremin holds the better App Store score, 4.8 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 100% of SpaceTheremin's written reviews are positive against 80% of Musizi's.

SpaceTheremin ships an update every 2 months, Musizi monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SpaceTheremin | Musizi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/spacetheremin/id884417701/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/musizi/id1599088770/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 158 MB |
| Requires iOS | **6.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUKIO ONOZUKA](https://appshunter.io/developer/876684692) | [appricot](https://appshunter.io/developer/525709496) |

## 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


### Musizi

[App page](https://appshunter.io/ios/app/musizi/id1599088770)

Explore and create unique musical instruments by experimenting with sound, harmony, and texture. This app allows you to redefine musical systems, shape your own tones, and discover how structural changes transform harmony. Unlock the full version to save and share your creations.

**Highlights:** Customizable digital instrument, Experiment with sound, harmony, and texture, Shape unique tones, Explore alternative note spacing, Visualize harmonic ratios, Overtone synthesis, Save and share setups (full version)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Musizi Development | $4.99 | one-time |


## Frequently asked questions

### Is SpaceTheremin free?

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

### Is Musizi free?

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

### Which has better reviews, SpaceTheremin or Musizi?

SpaceTheremin is rated higher. SpaceTheremin averages 4.8 out of 5 from 4 ratings, while Musizi averages 1.0 from 1 ratings.

### Do SpaceTheremin or Musizi have ads?

Neither SpaceTheremin nor Musizi shows ads.

### Which is updated more often, SpaceTheremin or Musizi?

SpaceTheremin ships an update every 2 months, and Musizi monthly. Most recently, SpaceTheremin was updated on November 6, 2026 and Musizi on November 3, 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.*