Comparison

SpaceTheremin vs PhaseRings

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • Expressive touch gesture music creation
  • Seven unique sound schemes
  • Generative composition engine
  • Customizable pitch compositions
  • Core MIDI support
  • AudioBus and Inter-App Audio support
Features
Read full description

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

SpaceTheremin4 screens
PhaseRings3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
SpaceTheremin versus PhaseRings: the parameters behind the verdict, then further details
ParameterSpaceThereminPhaseRings
PriceFreeFree
Rating4.8 (4 ratings) — better4.5 (18 ratings)
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings418 — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better16.0
Further details — not scored
Size6 MB6 MB
Age rating4+4+
DeveloperYUKIO ONOZUKACharles Martin

Customer experience

SpaceTheremin

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PhaseRings

All ratings12 ratings
Positive75.0%
Neutral8.3%
Negative16.7%
Written reviews20 reviews
Positive80.0%
Neutral5.0%
Negative15.0%

In-app purchases

None

SpaceTheremin

No in-app purchases

None

PhaseRings

No in-app purchases

Questions

Is SpaceTheremin free?
SpaceTheremin is free to download, with no in-app purchases.
Is PhaseRings free?
PhaseRings is free to download, with no in-app purchases.
Which has better reviews, SpaceTheremin or PhaseRings?
SpaceTheremin is rated higher. SpaceTheremin averages 4.8 out of 5 from 4 ratings, while PhaseRings averages 4.5 from 18 ratings.
Do SpaceTheremin or PhaseRings have ads?
Neither SpaceTheremin nor PhaseRings shows ads.
Which is updated more often, SpaceTheremin or PhaseRings?
SpaceTheremin ships an update every 2 months, and PhaseRings every 5 months. Most recently, SpaceTheremin was updated on November 6, 2026 and PhaseRings on November 1, 2026.

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