Comparison

iSequence HD 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

iSequence HD

Create professional music on your iPad with an intuitive 8-track sequencer, a vast library of instruments, and flexible mixing with DSP effects. Record, edit, and arrange loops, beats, and melodies in real-time, controlling every aspect of your music project.

Highlights
  • 8-track sequencer
  • 160+ built-in instruments
  • Custom instrument sampler
  • Real-time recording and automation
  • Step sequencer and FX editor
  • Flexible mixer with DSP effects
  • Wi-Fi file sharing
Read full description

iSequence is a long-running iPad music app appreciated for its speed, simplicity, and distinctive workflow. Build beats, melodies, and arrangements with an intuitive 8-track sequencer with 32-step patterns, shape sounds with its sampler, and mix everything with flexible DSP effects. Whether you are sketching loops or building full tracks, iSequence keeps music creation direct and hands-on. FAST, FLUID WORKFLOW Create patterns, record parts in real time, and edit them without interrupting playback. Switch between tracks, instruments, step sequencing, and automation as you build your song. iSequence is built for sketching ideas quickly, jamming with loops, and arranging complete tracks in a simple, focused environment. INSTRUMENTS • 160 built-in instruments, including acoustic sounds, drum kits, pads, leads, sweeps, and ambient textures • Additional sound banks available in the BankShop • Play with the on-screen piano keyboard or drum pads • Create custom instruments with the built-in sampler • Supports CoreMIDI and MIDI instruments REAL-TIME RECORDING AND AUTOMATION • Record notes as you play • Change tracks and instruments during playback • Use the metronome and slowdown mode for easier recording • Record parameter changes in real time STEP SEQUENCER • 8 tracks with FX curve editing • 32 steps per row / pattern • Instruments are not tied to tracks, allowing flexible sequencing and layering • Edit notes with the piano keyboard, drum pads, and other controls • Adjust note duration, panning, velocity, and gliss • Copy, paste, move, and transpose patterns and selections • Arrange patterns into full song structures MIXER AND EFFECTS • Adjust tempo, master volume, and shuffle • Mute, solo, and set levels for each track • Route tracks to 5 configurable effect channels • Includes Filter, Reverb, Flanger, Delay, Ring Modulator, EQ, Lo-Fi Crusher, Live Looper, and Distortion SAMPLER • Import, record, or paste samples to build custom instruments • Edit loop points, ADSR envelope, and sample mapping • Slice loops and synchronize them to tempo automatically FILE SHARING • Export songs as HSQ, MIDI, or WAV • Import samples and presets • Copy tracks to the audio clipboard • Import HSQ songs

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 in-app purchases: Theremini Advanced Software Editor at none against iSequence HD's 8. Theremini Advanced Software Editor also leads on iOS requirement (5.1.1 vs 15.6). iSequence HD's advantage is rating (4.2 vs 3.8) and review sentiment (77% vs 60%). On price, ratings volume, 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. iSequence HD sells 8 one-off in-app purchases. Theremini Advanced Software Editor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iSequence HD holds the better App Store score, 4.2 against 3.8. Both are backed by a comparable volume of ratings — 33 and 13 respectively. Written reviews point the same way: 77% of iSequence HD's written reviews are positive against 60% of Theremini Advanced Software Editor's.

UpkeepUpdate frequency

iSequence HD ships an update every 3 months, Theremini Advanced Software Editor every 4 months. The most recent releases landed on August 16, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
iSequence HD versus Theremini Advanced Software Editor: the parameters behind the verdict, then further details
ParameteriSequence HDTheremini Advanced Software Editor
PriceFreeFree
Rating4.2 (33 ratings) — better3.8 (13 ratings)
Positive reviews76.6% of reviews — better60.0% of reviews
Number of ratings33 — better13
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPadiPad
Requires iOS15.65.1.1 — better
Further details — not scored
Size156 MB50 MB
Age rating4+4+
DeveloperBeepStreetMoog Music Inc.

Customer experience

iSequence HD

All ratings32 ratings
Positive78.1%
Neutral0.0%
Negative21.9%
Written reviews222 reviews
Positive76.6%
Neutral9.0%
Negative14.4%

Theremini Advanced Software Editor

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

Bugs and requests

iSequence HD

Reported bugs

4 issues
  • Crashes on startup or during use
  • Issues with sample loading and playback
  • Inconsistent behavior with certain features
  • Compatibility problems with newer iOS versions

Requested features

6 requests
  • Expanded track count
  • More effects and sound design capabilities
  • Audiobus and Inter-App Audio integration
  • Improved sample import and management
  • Support for more time signatures and rhythms
Show 1 more
  • Ability to save and load full projects

Theremini Advanced Software Editor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

iSequence HD

One-time8
  • Funny farm bank$1.99
  • Chiptunes bank$1.99
  • Acoustic bank$2.99
Show 5 more
  • Electro/house bank$2.99
  • Trance waves$2.99
  • Loops vol.1$2.99
  • Loops vol.2$2.99
  • Beat elements bank$2.99
None

Theremini Advanced Software Editor

No in-app purchases

Questions

Is iSequence HD free?
iSequence HD 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, iSequence HD or Theremini Advanced Software Editor?
iSequence HD is rated higher. iSequence HD averages 4.2 out of 5 from 33 ratings, while Theremini Advanced Software Editor averages 3.8 from 13 ratings.
Do iSequence HD or Theremini Advanced Software Editor have ads?
Neither iSequence HD nor Theremini Advanced Software Editor shows ads.
Which is updated more often, iSequence HD or Theremini Advanced Software Editor?
iSequence HD ships an update every 3 months, and Theremini Advanced Software Editor every 4 months. Most recently, iSequence HD was updated on August 16, 2026 and Theremini Advanced Software Editor on June 1, 2026.

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