SpaceTheremin vs Musizi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpaceTheremin
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.
- 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
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Spacey Theremin Instruments app. Touch&move screen, will change pitch and Cosmic Delay Sounds!! Multi-touch free:2, pro:more than 2 Pro Version is No ad. Shake phone, put menu at menu->setting Delay On/Off Time Feedback Wave Sine Saw Square Triangle Noise Warp On/Off Softness Volume
Musizi
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.
- 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)
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Musizi is a highly customizable digital instrument. Experiment with sound, harmony, and texture while discovering how musical systems actually work. Shape your own tones, explore unusual combinations, and create instruments that feel uniquely yours. Unlock the full version to save and share your setups. Have an idea? Leave a rating and send a feature request. Musizi grows with its users. --------------------------------------------------- Western music is built on historical decisions: A4 at 440 Hz. Twelve equal divisions of the octave. Five staff lines. Octaves starting on C. But none of these are natural laws. Musizi lets you rebuild music from the inside. Redefine how an octave is divided. Explore alternative note spacing. Visualize harmonic ratios. Shape sound through overtone synthesis. Discover how small structural changes transform harmony. Music didn’t have to be the way it is. With Musizi, you can find out why.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SpaceTheremin | Musizi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 6 MB | 158 MB |
| Age rating | 4+ | 4+ |
| Developer | YUKIO ONOZUKA | appricot |
Customer experience
SpaceTheremin
Musizi
In-app purchases
SpaceTheremin
No in-app purchases
Musizi
- Support Musizi Development$4.99
