Comparison

OCTACHRON MIDI Drum Sequencer vs MIDI Strummer AUv3 Plugin

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

Head to head
About

OCTACHRON MIDI Drum Sequencer

This app is a flexible MIDI drum sequencer for iOS, offering up to 16 tracks with advanced modulation and sequencing. It can be used standalone or as an AUv3 plugin in DAWs, and is optimized for drums but also suitable for melodies. It requires iOS 12 or higher.

Highlights
  • 16 mutable tracks
  • AUv3 MIDI plugin
  • Standalone operation
  • Parameter locking
  • Smart randomizer
  • Chainable patterns
  • Custom time signatures
Features
Read full description

OCTACHRON is a very flexible iOS MIDI Drum Sequencer with up to 16 tracks and rich modulation and sequencing capabilities. It is optimized for drums, but also a lot of fun for basic melody lines. It works standalone or as AUv3 MIDI plugin in your favorite iOS DAW or mixer. (E.g. AUM, Logic Pro, Cubasis, Beatmaker, ApeMatrix, Groove Rider, Nanostudio and more (not GarageBand)) PRESS REVIEWS - “OCTACHRON is almost perfect now” (haQ attaQ) - “Favorite MIDI Sequencer - User's Choice Award 2022” (iOS AUv3 Facebook Group) - “An exciting MIDI sequencer with advanced features” (Synth Anatomy) - “Particularly the probability parameters are a lot of fun” (Amazona) !!! PLEASE NOTICE: OCTACHRON IS A MIDI SEQUENCER AND DOES NOT CREATE ANY SOUNDS OF ITS OWN !!! We believe in specialization. This is why OCTACHRON is focused on in depth MIDI sequencing. Control your favorite iOS drums like Blip Box, Ruismaker or MV08, synths like Zeeon or Model D or any other hard- or software MIDI instrument with it. iOS 12 or higher required. If used with a host software, this has to be compatible with the MIDI AudioUnit standard. OVERVIEW - Standalone or AUv3 AudioUnit - 1-32 steps with flexible clock divider and custom time signatures - Up to 16 mutable tracks with adjustable length - Up to 8 chainable patterns (song mode) - Swing with flexible swing grid - Save, restore and export your pattern presets, MIDI files and MIDI mapping presets - Parameter lock for velocity, ratcheting, offset, trigger probability, trigger condition, gate length and MIDI CC Modulation - Scales generator - MIDI control pattern selection, play and mute - Customizable mapping and mapping presets - Works iOS 12 upwards - Optimized for iPad and iPhone - Also compatible standalone with M Macs and Apple Vision Pro LOTS OF MAPPING PRESETS FOR POPULAR DRUM APPS AND HARDWARE - AR-909, Axxon 2 & Blip Box - Dadamachines Automat, Digistix & DM1/DM2/Drumlab - DrumComputer by Sugar Bytes - EGDR 606, 808 & 909 - FAC Drumkit, Hammerhead - Koala Sampler & Korg Gadgets - MV08 & NS2 Slate - Pure Acid Drums - Ruismaker & Ruismaker FM - SDS-X, Sitala & Splat-To-Clat - VA Drum SM, VA Drum2 808 & 909 - Vatanator - Korg Electribe EMX & ER-1 - Korg Volca Beats - MFB 522 - Roland MC-101 - Roland TR-08 - Roland TR-707 & 727 - Roland TR-808 - Roland TR-909 Also save, load and share your own MIDI mappings ... SMART RANDOMIZER - Smart pattern randomizer - Randomizer configuration per track - Trigger mutation per track - Mutation of internal and CC modulation parameters PARAMETER LOCK - Velocity and MIDI CC modulation - Multiple hits per step with ratcheting - Offset - Trigger probability - Trigger condition - Gate length - MIDI CC on every step - 8 CCs per Track - Mutation of Internal and CC Modulation TRACK SETTINGS - Assign MIDI notes to each track or use mapping presets - Individual track length to create polyrhythms LIVE PERFORMANCE FEATURES - Instant pattern switch option - Mute function per track to easily build up layers CONNECTIVIY - Sequence other standalone apps, AUv3 AudioUnits or external hardware via MIDI - OCTACHRON derives its timing from the host application, its internal clock or via AbletonLink - Trigger on different MIDI channels per track NO TRACKING - OCTACHRON works offline - No push notifications - No ads or in-app purchases - No tracking tools - Active on social media and in the mobile music community - Ongoing development and support and many new features on the list FOR MELODIC INSTRUMENTS GENERATE VARIOUS SCALES IN ALL KEYS OCTACHRON is optimized for drums. But it also supports standard melodic scales like major, minor and also more unusual ones like mixolydian, phrygian and more ...

About

MIDI Strummer AUv3 Plugin

This app generates MIDI note data to simulate guitar strumming and picking. It includes a soundfont player, definable chord pads, and a pattern editor for creating custom strumming and picking sequences. You can also chain patterns into songs and apply various audio effects.

Highlights
  • Simulate guitar strumming and picking
  • Generate MIDI note data
  • Import and use soundfonts (.SF2, .DLS)
  • 16 definable chord pads
  • Pattern editor for creating sequences
  • Song mode to chain patterns
  • 6 and 12 string emulation
  • Built-in audio effects
Features
Read full description

MIDI Strummer is an AUv3 plugin designed to simulate guitar strumming and picking techniques. It can used to generate MIDI note data which can be sent to either an external synth of choice or the internal soundfont engine.  The inbuilt soundfont player allows you to import all your favourite .SF2 and .DLS soundfonts and use them as a sound source. MIDI strummer has a set of 16 definable chord pads that can hold a series of chords, which in turn can be triggered remotely via MIDI messages or by tapping the pads. Use the pattern editor to create a series of picking or strumming patterns that can be tranposed to the selected chord pad.  Song mode allows you to chain these chord patterns together to form songs combining both picking and strumming patterns within the same song. Enable 6/12 string on a particular part to emphesize a pert by adding depth. Strummer also features a number of audio effects that can be used to enhance the audio from the soundfont player. These include overdrive, distortion, tremolo, chorus, phaser, graphic EQ, digital delay and reverb. Key Features: • 6 and 12 string emulations. • Simulate strum up/down with variable speeds. • Create patterns up to 64 steps in length. • Load up to 6 pattern variations. • Ramdomize and rotate options. • Songs can be up to 255 steps in length. • Built in ARP function. • Import your own soundfonts. • 8 different effect types (reverb, delay, phaser, chorus, overdrive, distortion, tremelo and EQ). • Paramter Automation from your DAW using MIDI. • Built in Sampler. • Comprehensive Help pages included. Please Note: This version is now compatible with GarageBand running on iOS14.

Screenshots

OCTACHRON MIDI Drum Sequencer4 screens
MIDI Strummer AUv3 Plugin4 screens

Verdict

The call

The clearest difference is rating: OCTACHRON MIDI Drum Sequencer at 4.6 against MIDI Strummer AUv3 Plugin's 4.3. OCTACHRON MIDI Drum Sequencer also leads on price ($9.99 vs $12.99) and iOS requirement (12.0 vs 15.6). On review sentiment, 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

OCTACHRON MIDI Drum Sequencer costs $9.99 and MIDI Strummer AUv3 Plugin $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OCTACHRON MIDI Drum Sequencer holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 106 and 51 respectively. Written reviews point the same way: 81% of OCTACHRON MIDI Drum Sequencer's written reviews are positive against 75% of MIDI Strummer AUv3 Plugin's.

UpkeepUpdate frequency

OCTACHRON MIDI Drum Sequencer ships an update every 2 months, MIDI Strummer AUv3 Plugin every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
OCTACHRON MIDI Drum Sequencer versus MIDI Strummer AUv3 Plugin: the parameters behind the verdict, then further details
ParameterOCTACHRON MIDI Drum SequencerMIDI Strummer AUv3 Plugin
Price$9.99 — better$12.99
Rating4.6 (106 ratings) — better4.3 (51 ratings)
Positive reviews81.0% of reviews — better75.4% of reviews
Number of ratings106 — better51
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size12 MB386 MB
Age rating4+4+
DeveloperMarkus Teufel4Pockets.com

Customer experience

OCTACHRON MIDI Drum Sequencer

All ratings104 ratings
Positive88.5%
Neutral3.8%
Negative7.7%
Written reviews105 reviews
Positive81.0%
Neutral8.6%
Negative10.5%

MIDI Strummer AUv3 Plugin

All ratings51 ratings
Positive80.4%
Neutral9.8%
Negative9.8%
Written reviews61 reviews
Positive75.4%
Neutral11.5%
Negative13.1%

User reviews

OCTACHRON MIDI Drum Sequencer

From 106 App Store ratings

What we love

  • 👍 Intuitive and easy to use
  • 💡 Powerful and versatile sequencer
  • 🚀 Produces results quickly
  • 🌟 Great for drum patterns
  • 🎛️ Excellent modulation options

Room to improve

  • 🐛 Pattern change via MIDI difficult
  • ❓ Clock div issues reported
  • 💡 Missing touchable pads
  • ❓ No sound output reported
  • 🐛 Projects broken by update

MIDI Strummer AUv3 Plugin

From 51 App Store ratings

What we love

  • 👍 Great app for guitar tracks
  • 💡 Versatile arpeggiator
  • 🎶 Excellent sound quality
  • 🎹 Capable soundfont player
  • 🎵 Intuitive interface

Room to improve

  • 🐛 Frequent crashes
  • ⚠️ Suspicious support website
  • 📉 Limited control over swing/triplet tempo
  • ❓ Difficult to get MIDI out
  • 🖱️ Clunky UI

Bugs and requests

OCTACHRON MIDI Drum Sequencer

Reported bugs

24 issues
  • Clock div issues reported
  • No sound output reported
  • Projects broken by update
  • Skipping first note on pattern change
  • GUI glitchy/choppy
Show 19 more
  • Crashing when loading custom mapping
  • Repeating notes unexpectedly
  • Kick muting in song mode
  • Controller faders not working perfectly
  • Unwanted random notes
  • MIDI recording not an option
  • Pattern change via MIDI difficult
  • GarageBand AUv3 compatibility issues
  • No sound output
  • Projects corrupted after update
  • Clock division not working
  • Difficulty changing patterns
  • MIDI note sequences cannot be recorded
  • Choppy visual experience
  • Random notes played with ThumbJam
  • Crash when loading saved custom mapping
  • Skipping first note when switching patterns
  • Repeating notes without repeat enabled
  • Kick drum mutes in song mode

Requested features

26 requests
  • Add touchable pads
  • Add MIDI Step record feature
  • Add triplets
  • Add MIDI file export and import
  • Add system-wide preset save and load
Show 21 more
  • Add randomization for different genres
  • Increase channel count to 16
  • Add more options for MIDI input for real-time control
  • Add MIDI learn button for each track
  • Add option to record drums live into the sequencer
  • Add more patterns
  • Follow mode for song mode GUI
  • Enhanced mod edit mode with inline editing
  • Ability to drag/select patterns in song mode to auto loop
  • App preset for Arturia iSpark
  • MIDI channel per drum sound
  • Number indicating parameter value while changing
  • Ability to tie patterns
  • Note length option
  • 16 channel support
  • MIDI channel per track
  • Pattern resync for DAW synchronization
  • Expandable number of patterns and rows
  • Preview sounds
  • Import sound directly into slots
  • Triplets division

MIDI Strummer AUv3 Plugin

Reported bugs

15 issues
  • App support is not opening
  • App support website is gone/suspicious
  • App keeps crashing when hosted in AUM
  • Plugin corrupts entire track and makes project impossible to open
  • Crashes constantly when used in AUM
Show 10 more
  • Latest update causes failed to load in IMPC pro 2 and standalone
  • App crashes and help function doesn't work
  • Audio unit extension quit messages
  • Crashes when selecting a preset
  • Soundfonts not working when loaded as an instrument in AUM
  • Sometimes stops all internal sounds
  • Pop up menus not accessible for VoiceOver
  • MIDI channel out returns to default on every startup
  • Chords bug out and change half the chord in latch mode
  • Preset/chords would not save in AUM

Requested features

34 requests
  • Include pattern lengths of 3, 5, 7
  • Piano to guitar chords and manual strumming
  • Offset notes in pattern editor for swing/triplet tempos
  • Add swing/humanize to patterns
  • Functionality for capo or real-time key change with MIDI
Show 29 more
  • Pattern latch function in real-time with MIDI
  • More guitar sounds and strum patterns
  • Optimize for M1 Macs
  • Save and export patterns to MIDI
  • Tap or strum patterns manually and record
  • Interface similar to Helium for saving/exporting MIDI
  • Interface reminiscent of Guitarism
  • Stronger colors for chosen/played chords
  • Modulation in song creation (change key)
  • Access MIDI parameters in Piano to Guitar mode
  • More detailed documentation on chord formation
  • Ability to reorder saved settings
  • MIDI learn for CC messages
  • Add more layers of pads for chords (7ths, sus, etc.)
  • Double size pad page for more chords
  • MIDI in functionality
  • Ability to touch fretboard for custom chords/voicings
  • Construct chords from scratch
  • Control over pedal damping
  • Add open tunings
  • Change chords on every half and quarter beat
  • Display current preset name at the top
  • Add bend of notes and note sustain
  • Improve interface for ARP/strum grid to match guitar tabs
  • Save chord chains, chord pads, and custom strumming patterns separately
  • Include custom chords in future versions
  • More Soundfont files
  • More presets
  • Faster BPM adjustment

In-app purchases

None

OCTACHRON MIDI Drum Sequencer

No in-app purchases

None

MIDI Strummer AUv3 Plugin

No in-app purchases

Questions

Is OCTACHRON MIDI Drum Sequencer free?
OCTACHRON MIDI Drum Sequencer costs $9.99, with no in-app purchases.
Is MIDI Strummer AUv3 Plugin free?
MIDI Strummer AUv3 Plugin costs $12.99, with no in-app purchases.
Which has better reviews, OCTACHRON MIDI Drum Sequencer or MIDI Strummer AUv3 Plugin?
OCTACHRON MIDI Drum Sequencer is rated higher. OCTACHRON MIDI Drum Sequencer averages 4.6 out of 5 from 106 ratings, while MIDI Strummer AUv3 Plugin averages 4.3 from 51 ratings.
Do OCTACHRON MIDI Drum Sequencer or MIDI Strummer AUv3 Plugin have ads?
Neither OCTACHRON MIDI Drum Sequencer nor MIDI Strummer AUv3 Plugin shows ads.
Which is updated more often, OCTACHRON MIDI Drum Sequencer or MIDI Strummer AUv3 Plugin?
OCTACHRON MIDI Drum Sequencer ships an update every 2 months, and MIDI Strummer AUv3 Plugin every 6 weeks. Most recently, OCTACHRON MIDI Drum Sequencer was updated on November 2, 2026 and MIDI Strummer AUv3 Plugin on November 3, 2026.

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