SpaceTheremin vs PhaseRings
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
PhaseRings
Create expressive music with intuitive touch gestures. Explore various sound schemes and generative composition tools to craft unique musical pieces. Supports MIDI and Audiobus for advanced integration.
- Expressive touch gesture music creation
- Seven unique sound schemes
- Generative composition engine
- Customizable pitch compositions
- Core MIDI support
- AudioBus and Inter-App Audio support
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PhaseRings is a musical instrument for performing expressive music with touch gestures. Anyone can create a beautiful piece of music with our sound schemes and generative composition engine! Each ring on the screen represents a different pitch, and you can tap and swirl on each ring to create combinations of long and short notes. The angle and size of your tap will change the timbre of the notes you create! New in version 3.0, PhaseRings is also an AUv3 Audio Unit plugin. Load it as an instrument in hosts like AUM, GarageBand, Logic Pro for iPad, and Cubasis — play the rings inside your host, run several instances at once, drive it from MIDI tracks, and record it through your host's effects. PhaseRings includes seven expressive "sound schemes" featuring percussive sounds like marimba and singing bowls as well as pure synth sounds like phase and string synthesis. Four "compositions" of pitches are included in the app, but you can also create your own custom composition by choosing three base notes and scales. PhaseRings will do the rest, generating a series of great setups from the harmony you choose! Features: - AUv3 Audio Unit instrument for AUM, GarageBand, Logic Pro, Cubasis, and other hosts - 7 sound schemes - 4 built-in compositions - Custom generative composition - 11 scales and modes - Core MIDI in and out for iOS MIDI accessories and MIDI-enabled apps - VoiceOver support and light/dark appearance
Screenshots
Verdict
The clearest difference is review sentiment: SpaceTheremin at 100% against PhaseRings's 80%. SpaceTheremin also leads on rating (4.8 vs 4.5) and update cadence (every 2 months vs every 5 months). PhaseRings's advantage is ratings volume (18 vs 4). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
SpaceTheremin holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 4 and 18 respectively. Written reviews point the same way: 100% of SpaceTheremin's written reviews are positive against 80% of PhaseRings's.
SpaceTheremin ships an update every 2 months, PhaseRings every 5 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.
| Parameter | SpaceTheremin | PhaseRings |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 4.5 (18 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 4 | 18 — better |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | YUKIO ONOZUKA | Charles Martin |
Customer experience
SpaceTheremin
PhaseRings
In-app purchases
SpaceTheremin
No in-app purchases
PhaseRings
No in-app purchases









