Comparison

Theremini Advanced Software Editor vs LE04 | AR

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

Head to head
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

About

LE04 | AR

This app emulates a classic 1980s analog drum machine, offering a hybrid synth/sample-based approach to beat creation. It provides intuitive controls for live tweaking and pattern switching, making it ideal for both studio work and live performance.

Highlights
  • Hybrid synth/sample-based drum creation
  • AUv3 plugin support
  • Intuitive controls for live tweaking
  • Pattern switching for live performance
  • Ableton Link integration
  • MIDI trigger and pattern support
Features
Read full description

Inspired by dusty old circuits from 1983... Sounds Analog and Alive. Create your own sound. Your own beat. Your own vibe. This app is inspired by a specific piece of drum machine hardware. "The AudioKit 909 is PERFECT, fantastic job!" - Jakob Haq, iOS YouTuber "Very cool..I really like the vibe of it!" – J Miles, Grammy-winning producer (Michael Jackson) + Hybrid Synth/sample based drum creation + AUv3 (Use as plugin in GarageBand, AUM, Cubasis 3, BM3, etc) + Easy to use controls. Create your own sound. Live tweaks. + Exclusive special sauce. Vibe it out. + Ableton Link if you want to rock it standalone Tweak the knobs. This is a drum machine that is meant to be PLAYED. Switch Patterns on screen (or with MIDI) to create new creations on the fly for live performance or songwriting. It's like getting an expensive piece of vintage hardware on your iPhone and iPad. Small & mighty: Entire app less than 20mb (on most devices) WEBSITE: audiokitpro.com/analog909 REQUIREMENTS: iPhone 6s and above screen size. Requires iOS 11 and above. Will not work with 1st generation SE phones. MIDI Guide: + MIDI for drum triggers (Bass Drum, Snare, etc) start on "C" Note 36 (C1 in GarageBand) + MIDI for pattern triggers start on "C" Note 12 (C-1 in GarageBand) COMING: + AUv3 automation coming to AUM + MIDI CC and MIDI Learn coming + Better AUv3 timing coming. For now, try lowering buffer for quicker latency + MIDI Out This app is part of our Limited Edition App Series: https://audiokitpro.com/appdrops Thank you for your support. Looking forward to hearing your creations, please tag @audiokitpro on Instagram and Twitter :) NOTE: This app has no affiliation with Roland. It is a brand new synth drum machine for your enjoyment.

Screenshots

LE04 | AR4 screens

Verdict

The call

The clearest difference is price: Theremini Advanced Software Editor at Free against LE04 | AR's $2.99. Theremini Advanced Software Editor also leads on iOS requirement (5.1.1 vs 11.0). LE04 | AR's advantage is rating (4.8 vs 3.8) and update cadence (every 3 days vs every 4 months). On ads and in-app purchases 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

Theremini Advanced Software Editor is free to download; LE04 | AR costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

LE04 | AR holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: LE04 | AR has 1.5K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 60% of Theremini Advanced Software Editor's written reviews are positive against 69% of LE04 | AR's.

UpkeepUpdate frequency

Theremini Advanced Software Editor ships an update every 4 months, LE04 | AR every 3 days. Both last shipped on October 16, 2026.

Scorecard8 real differences · 2 level
Theremini Advanced Software Editor versus LE04 | AR: the parameters behind the verdict, then further details
ParameterTheremini Advanced Software EditorLE04 | AR
PriceFree — better$2.99
Rating3.8 (13 ratings)4.8 (1.5K ratings) — better
Positive reviews60.0% of reviews69.0% of reviews — better
Number of ratings131.5K — better
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS5.1.1 — better11.0
Further details — not scored
Size50 MB25 MB
Age rating4+4+
DeveloperMoog Music Inc.Cooperator Design

Customer experience

Theremini Advanced Software Editor

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

LE04 | AR

All ratings1,500 ratings
Positive96.5%
Neutral2.1%
Negative1.4%
Written reviews226 reviews
Positive69.0%
Neutral12.8%
Negative18.1%

Bugs and requests

Theremini Advanced Software Editor

Not enough reviews yet to summarise bugs or requests.

LE04 | AR

Reported bugs

3 issues
  • Crashes on startup for some users
  • Volume/parameter changes not retained
  • Timing issues when synced to other apps

Requested features

5 requests
  • Pattern chaining/song mode
  • Ability to load custom samples
  • Separate audio outputs for drums
  • Longer pattern length options
  • Midi learn and mapping capabilities

In-app purchases

None

Theremini Advanced Software Editor

No in-app purchases

None

LE04 | AR

No in-app purchases

Questions

Is Theremini Advanced Software Editor free?
Theremini Advanced Software Editor is free to download, with no in-app purchases.
Is LE04 | AR free?
LE04 | AR costs $2.99, with no in-app purchases.
Which has better reviews, Theremini Advanced Software Editor or LE04 | AR?
LE04 | AR is rated higher. Theremini Advanced Software Editor averages 3.8 out of 5 from 13 ratings, while LE04 | AR averages 4.8 from 1.5K ratings.
Do Theremini Advanced Software Editor or LE04 | AR have ads?
Neither Theremini Advanced Software Editor nor LE04 | AR shows ads.
Which is updated more often, Theremini Advanced Software Editor or LE04 | AR?
Theremini Advanced Software Editor ships an update every 4 months, and LE04 | AR every 3 days. Most recently, Theremini Advanced Software Editor was updated on October 16, 2026 and LE04 | AR on October 16, 2026.

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