# Thesys vs Claravox

The clearest difference is review sentiment: Thesys at 59% against Claravox's 0%. Thesys also leads on ratings volume (86 vs 3). Claravox's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.7). On price and ads there is nothing between them.

Both are free to download. Thesys sells 1 one-off in-app purchase. Claravox asks for nothing beyond the download.

Claravox holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Thesys has 86 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 59% of Thesys's written reviews are positive against 0% of Claravox's, so the app with the better star average is not the one people write more warmly about.

Thesys ships an update every 2 months, Claravox every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Thesys | Claravox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (86 ratings)](https://appshunter.io/ios/app/thesys/id655513441/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/claravox/id1536620093/reviews)** |
| Number of ratings | **86** | 3 |
| Positive reviews | **59.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 29 MB | 45 MB |
| Requires iOS | 17.6 | **14.3** |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) | [Moog Music Inc.](https://appshunter.io/developer/396776421) |

## What reviewers say

### Thesys

[App page](https://appshunter.io/ios/app/thesys/id655513441)

This app is a powerful and intuitive MIDI step sequencer for creating complex musical patterns. It offers extensive control over MIDI devices, enabling organic bass lines, leads, and pads for studio or live performance. Advanced features allow for real-time pattern manipulation directly from a MIDI keyboard.

**Highlights:** MIDI Step Sequencer, Pattern Creation, Live Performance Options, Real-time Pattern Manipulation, Integrated Synth, Action Section (Gatetime, Looper, Slowdown), Ableton Link Support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thesys Full Version | $19.99 | one-time |


### Claravox

[App page](https://appshunter.io/ios/app/claravox/id1536620093)

This app provides an advanced interface for sound design and preset management for a specific theremin instrument. It unlocks additional synthesis features and allows users to craft, store, and share custom sonic creations.

**Highlights:** Intuitive graphical interface for all control parameters, Access advanced synthesis engine features, Create, store, and manage new presets, Edit existing presets and re-sculpt sounds, Share custom sonic creations and libraries, Update theremin firmware, Exclusive library of new presets

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thesys free?

Thesys is free to download, with in-app purchases available.

### Is Claravox free?

Claravox is free to download, with no in-app purchases.

### Which has better reviews, Thesys or Claravox?

Claravox is rated higher. Thesys averages 4.7 out of 5 from 86 ratings, while Claravox averages 5.0 from 3 ratings.

### Do Thesys or Claravox have ads?

Neither Thesys nor Claravox shows ads.

### Which is updated more often, Thesys or Claravox?

Thesys ships an update every 2 months, and Claravox every 3 weeks. Most recently, Thesys was updated on November 6, 2026 and Claravox on November 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.*