# Theremin Synth vs TriKey

The clearest difference is price: Theremin Synth at $2.99 against TriKey's $9.99. Theremin Synth also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Theremin Synth costs $2.99 and TriKey $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Theremin Synth | TriKey |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Size | 1 MB | 5 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luke Phillips](https://appshunter.io/developer/1104816325) | [Marcos Kohler](https://appshunter.io/developer/1024379665) |

## What reviewers say

### Theremin Synth

[App page](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326)

Create unique soundscapes with this multitouch synthesizer. Record, loop, and overdub your creations, then export them as WAV files to share. Experiment with various waveforms and effects for endless sonic possibilities.

**Highlights:** Multitouch synthesis, Record, loop, and overdub, Adjustable delay, feedback, and scuzz effects, Four waveform options, Export recordings as WAV files, Offline functionality

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

**In-app purchases:** none


### TriKey

[App page](https://appshunter.io/ios/app/trikey/id1406537477)

**In-app purchases:** none


## Frequently asked questions

### Is Theremin Synth free?

Theremin Synth costs $2.99, with no in-app purchases.

### Is TriKey free?

TriKey costs $9.99, with no in-app purchases.

### Do Theremin Synth or TriKey have ads?

Neither Theremin Synth nor TriKey shows ads.

### Which is updated more often, Theremin Synth or TriKey?

Theremin Synth ships an update every 2 months, and TriKey every 2 months. Most recently, Theremin Synth was updated on October 1, 2026 and TriKey on October 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.*