Comparison

Thesys vs Theremini Advanced Software Editor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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

About

Theremini Advanced Software Editor

This application allows users to deeply customize and manage sounds for their Moog Theremini hardware synthesizer. It provides tools to create new presets, edit existing ones, and organize sound libraries. Users can also access an exclusive library of new presets to enhance their creative process.

Highlights
  • Create new presets
  • Edit existing presets
  • Craft new sounds in real-time
  • Manage preset libraries
  • Share sound libraries
  • Edit global settings
Read full description

Unlock your Theremini’s previously unseen world of sonic features with The Moog Theremini Advanced Software Editor. This editor puts the power of sound design in your hands by allowing you to access new layers of the Theremini’s synthesis engine. Easily craft new and exciting sounds for your Moog Theremini, re-sculpt existing presets, and share your sonic creations with others. The Moog Theremini 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 Theremini. To use this app, the user must have a Lightning to USB host adapter (for iPads with Lightning connector) or the Apple Camera Connection Kit (for iPads with 30pin connector) and a mini USB cable. FEATURES Create new presets Edit existing presets Craft new sounds in real-time while playing your Moog Theremini Create or edit preset libraries with built in Library Manager Unlimited preset storage Share libraries of sounds via email or iTunes file sharing Edit the Theremini’s global settings Built in Editor User Manual, Theremini User Manual, and Quick Start Guide Simple drag-and-drop preset library Quick Save for instantly editing an existing sound

Verdict

The call

The clearest difference is rating: Thesys at 4.7 against Theremini Advanced Software Editor's 3.8. Thesys also leads on ratings volume (85 vs 13). Theremini Advanced Software Editor's advantage is in-app purchases (none vs 1) and iOS requirement (5.1.1 vs 17.6). On price, review sentiment, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Thesys holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Thesys has 85 ratings behind it against 13, so its average is the more settled of the two. Written reviews split almost evenly too, at 59% and 60% positive.

UpkeepUpdate frequency

Thesys ships an update every 3 months, Theremini Advanced Software Editor every 4 months. The most recent releases landed on August 9, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
Thesys versus Theremini Advanced Software Editor: the parameters behind the verdict, then further details
ParameterThesysTheremini Advanced Software Editor
PriceFreeFree
Rating4.7 (85 ratings) — better3.8 (13 ratings)
Positive reviews59.3% of reviews60.0% of reviews — better
Number of ratings85 — better13
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPadiPad
Requires iOS17.65.1.1 — better
Further details — not scored
Size28 MB50 MB
Age rating4+4+
DeveloperSugar Bytes GmbHMoog Music Inc.

Customer experience

Thesys

All ratings85 ratings
Positive91.8%
Neutral2.4%
Negative5.9%
Written reviews54 reviews
Positive59.3%
Neutral11.1%
Negative29.6%

Theremini Advanced Software Editor

All ratings13 ratings
Positive69.2%
Neutral7.7%
Negative23.1%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

1 purchases

Thesys

One-time1
  • Thesys Full Version$19.99
None

Theremini Advanced Software Editor

No in-app purchases

Questions

Is Thesys free?
Thesys is free to download, with in-app purchases available.
Is Theremini Advanced Software Editor free?
Theremini Advanced Software Editor is free to download, with no in-app purchases.
Which has better reviews, Thesys or Theremini Advanced Software Editor?
Thesys is rated higher. Thesys averages 4.7 out of 5 from 85 ratings, while Theremini Advanced Software Editor averages 3.8 from 13 ratings.
Do Thesys or Theremini Advanced Software Editor have ads?
Neither Thesys nor Theremini Advanced Software Editor shows ads.
Which is updated more often, Thesys or Theremini Advanced Software Editor?
Thesys ships an update every 3 months, and Theremini Advanced Software Editor every 4 months. Most recently, Thesys was updated on August 9, 2026 and Theremini Advanced Software Editor on June 1, 2026.

Other comparisons