SpaceTheremin vs TriplexClassic
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
TriplexClassic
This application offers a classic FM synthesizer experience with a modern interface. It allows for a wide range of sounds, from clean to distorted, with six specialized macro controls for easy sound shaping. An LFO and drive control further enhance its sound design capabilities.
- 3 operator FM synth engine
- Up to 8 voices
- 6 specialized macro controls
- LFO with shape control
- Drive control
- Modern, accessible interface
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Classic FM sounds with a modern twist! TriplexClassic takes inspiration from famous digital synthesizers of the 80s and puts them in an easy-to-use, accessible interface. The synth engine was developed from the ground up to facilitate sounds ranging from pristine modern FM sounds to crunchy bit-crushed mayhem - with everything in between. It is equipped with 6 highly specialized macro controls that makes it easy to set up without any tedious programming. Features: - 3 operator FM synth engine with up to 8 voices - Macro controls over FM amount, harmonicity, phase and bit resolution (labeled "redux"), attack, combined decay/release and sustain - LFO with shape control (sine, triangle, ramp up, ramp down, square, random) and user-definable destination - Drive control KNOWN ISSUES: As of right now the standalone app does not support incoming Midi. Please use TriplexClassic hosted as an AUv3 plugin.
Screenshots
Verdict
The clearest difference is update cadence: TriplexClassic at every 5 days against SpaceTheremin's every 2 months. TriplexClassic also leads on rating (5.0 vs 4.8) and ratings volume (15 vs 4). SpaceTheremin's advantage is iOS requirement (6.0 vs 14). On price, review sentiment, ads and in-app purchases 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.
TriplexClassic holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 15 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SpaceTheremin ships an update every 2 months, TriplexClassic every 5 days. The most recent releases landed on September 4, 2026 and September 30, 2026 respectively.
| Parameter | SpaceTheremin | TriplexClassic |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) | 5.0 (15 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 15 — better |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 14 |
| Further details — not scored | ||
| Size | 6 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | YUKIO ONOZUKA | Christopher Herb |
Customer experience
SpaceTheremin
TriplexClassic
In-app purchases
SpaceTheremin
No in-app purchases
TriplexClassic
No in-app purchases
