Thesys vs Claravox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thesys
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.
- MIDI Step Sequencer
- Pattern Creation
- Live Performance Options
- Real-time Pattern Manipulation
- Integrated Synth
- Action Section (Gatetime, Looper, Slowdown)
- Ableton Link Support
Read full descriptionHide full description
Thesys is an extremely powerful and intuitive MIDI Step Sequencer app, giving you control over just about all aspects of your favorite MIDI devices. Use Thesys to create varied and organic bass lines, screaming leads, pulsating chords, and organic pad sounds in the studio or on stage. For live musicians, Thesys provides an extremely versatile palette of performance options which can be triggered right from your MIDI keyboard: you can transpose, manipulate, twist up, mutate, and mangle your patterns without even getting near your iPad. No other MIDI sequencer plugin offers you the ease and power of Thesys. It is 100% MIDI compliant and therefore provides the ultimate MIDI sequencing solution. iPad Edition Features: • Integrated Synth • Action Section (Gatetime, Looper, Slowdown...) • Pattern Sequencer • Standalone & Audio Unit v3 • Ableton Link Support • MIDI file Export • MIDI Support (Virtual, Netzwerk, Extern, Bluetooth), MIDI Learn & Host Automation • MIDI Clock Sync (Master & Slave) • Preset iCloud Sync • Preset Share • Zoom
Claravox
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.
- 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
Read full descriptionHide full description
Take full control of your Claravox Centennial Theremin with the Moog Claravox Advanced Software Editor. This Universal App (iOS & MacOS) puts the power of sound design in your hands by displaying all Claravox control parameters in a single intuitive graphical interface. Access new layers of the Claravox Centennial’s synthesis engine, unlocking advanced sonic features not found on the front panel such as a second oscillator, scannable wavetables, an additional filter (state-variable), modulation routings, and more. Easily craft new and exciting sounds for your Moog Claravox, re-sculpt existing presets, and share your sonic creations with others. The Moog Claravox Advanced Software Editor also includes an exclusive library of new presets to kick-start your creative process. NOTE: This application does not make sound by itself. It is an editor librarian app for the Moog Claravox Centennial Theremin. To use this app, you must connect Claravox to your MacOS or iOS device via USB or DIN MIDI and select the appropriate ports in the App MIDI settings. Examples of common adapters include: the Apple Lightning to USB Camera adapter (for iOS devices with Lightning connector) and a USB 2.0 cable, the Apple USB-C to USB adapter (for devices with USB-C port) and a USB 2.0 cable, or a Bluetooth enabled MIDI dongle. FEATURES • Create, store, and manage new presets • Edit existing presets • Access advanced sonic features not found on the Claravox Centennial front panel • Craft new sounds in real-time while playing your Claravox Centennial Theremin • Create or edit preset libraries with built in Library Manager • Unlimited preset storage • Share custom libraries of your Claravox presets with others • Edit Claravox Centennial’s global settings • Update Claravox Centennial’s firmware • Read Claravox Centennial’s manual
Screenshots
Verdict
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.
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. 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 1, 2026 and November 3, 2026 respectively.
| Parameter | Thesys | Claravox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (86 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 59.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 86 — better | 3 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.6 | 14.3 — better |
| Further details — not scored | ||
| Size | 29 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Sugar Bytes GmbH | Moog Music Inc. |
Customer experience
Thesys
Claravox
In-app purchases
Thesys
- Thesys Full Version$19.99
Claravox
No in-app purchases









