# Theremin Synth vs QuantiChord

The clearest difference is price: Theremin Synth at $2.99 against QuantiChord's $12.99. QuantiChord's advantage is rating (4.0 vs 3.2). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Theremin Synth costs $2.99 and QuantiChord $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

QuantiChord holds the better App Store score, 4.0 against 3.2. Both are backed by a comparable volume of ratings — 6 and 11 respectively. Written reviews complicate that: 64% of Theremin Synth's written reviews are positive against 60% of QuantiChord's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Theremin Synth | QuantiChord |
| --- | --- | --- |
| Price | **$2.99** | $12.99 |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/theremin-synth-record-and-loop/id1104816326/reviews) | **[4.0 (11 ratings)](https://appshunter.io/ios/app/quantichord/id1439713799/reviews)** |
| Number of ratings | 6 | **11** |
| Positive reviews | **63.6% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 34 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Luke Phillips](https://appshunter.io/developer/1104816325) | [Laurent Colson](https://appshunter.io/developer/381525765) |

## 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


### QuantiChord

[App page](https://appshunter.io/ios/app/quantichord/id1439713799)

This app generates chords from incoming notes and quantizes them to a selected scale. It functions as a standalone application or an AUv3 MIDI effect plugin, offering extensive MIDI connectivity and an internal sound bank.

**Highlights:** Standalone app and AUv3 MIDI effect plugin, Chord generation with transposing notes, Scale quantization, Full internal and external MIDI support, Internal sound bank, Preset management and sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Theremin Synth free?

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

### Is QuantiChord free?

QuantiChord costs $12.99, with no in-app purchases.

### Which has better reviews, Theremin Synth or QuantiChord?

QuantiChord is rated higher. Theremin Synth averages 3.2 out of 5 from 6 ratings, while QuantiChord averages 4.0 from 11 ratings.

### Do Theremin Synth or QuantiChord have ads?

Neither Theremin Synth nor QuantiChord shows ads.

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

Theremin Synth ships an update every 2 months, and QuantiChord every 2 months. Most recently, Theremin Synth was updated on October 24, 2026 and QuantiChord on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*