Comparison

Ruismaker vs OCTACHRON MIDI Drum Sequencer

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

Head to head
About

Ruismaker

This app is an analog drumsynth that creates sounds using authentic synthesis algorithms, not samples. It features a creative Euclidean sequencer for pattern programming and integrates seamlessly with AUv3 hosts like Garageband. It offers customizable sound models and MIDI control for flexible music production.

Highlights
  • Analog and FM synthesis sound modeling
  • Sample-free sound generation
  • Euclidean sequencer
  • AUv3 compatibility
  • MIDI CC control
  • WAV and MIDI export
  • Ableton Link sync
Features
Read full description

What the reviews say: "A must-have drum synth for electronic music lovers on iOS" - Keyboard Mag "All of this comes together in a vision that’s really playable [...] this is another excellent choice for the iPad." - CreateDigitalMusic "Small, compact and easy to use, Ruismaker is both inexpensive and a perfectly credible choice if you are after solid drum synth sounds." - MusicAppBlog -- Ruismaker is a unique drumsynth plugin (i.e. it does not use samples), which is coupled with a creative Euclidean sequencer when run in standalone mode. The plugin is fully AUv3 (Audio Unit) compatible: - Seamless integration with Garageband and other AU hosts - Audio Unit Instrument: making music on iOS doesn't get more convenient - Supports Multi-Output AUv3 in AUM and ApeMatrix! - Each sound is modeled using authentic analog and FM algorithms; - Comes with dozens of unique customizable models - Does not use any samples; all sounds are synthesized in realtime, on the fly - Emulates analog components, introducing subtle, natural fluctuations in the sound - Light on the CPU, so you can run lots of Ruismakers simultaneously - Fully automatable parameters (requires host support) and MIDI CC controllable - Has its own preset manager The standalone sequencer is refreshingly different: - Program patterns using Euclidean algorithms - Powerful random feature and mutation probability settings per channel - Syncs with Ableton Link or MIDI Clock - Exports WAV and MIDI - Compatible with Audiobus 3 (including MIDI IN/OUT mode) - CoreMIDI In and Out - AU MIDI output for the on-screen pads User manual available on Ruismaker.com

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 ...

Screenshots

Ruismaker2 screens
OCTACHRON MIDI Drum Sequencer4 screens

Verdict

The call

The clearest difference is price: Ruismaker at $4.99 against OCTACHRON MIDI Drum Sequencer's $9.99. Ruismaker also leads on rating (4.8 vs 4.6). 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

Ruismaker costs $4.99 and OCTACHRON MIDI Drum Sequencer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ruismaker holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 58 and 106 respectively. Written reviews complicate that: 74% of Ruismaker's written reviews are positive against 81% of OCTACHRON MIDI Drum Sequencer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ruismaker ships an update every 5 weeks, OCTACHRON MIDI Drum Sequencer every 2 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Ruismaker versus OCTACHRON MIDI Drum Sequencer: the parameters behind the verdict, then further details
ParameterRuismakerOCTACHRON MIDI Drum Sequencer
Price$4.99 — better$9.99
Rating4.8 (58 ratings) — better4.6 (106 ratings)
Positive reviews74.1% of reviews81.0% of reviews — better
Number of ratings58106 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size9 MB12 MB
Age rating4+4+
DeveloperBram BosMarkus Teufel

Customer experience

Ruismaker

All ratings57 ratings
Positive96.5%
Neutral1.8%
Negative1.8%
Written reviews54 reviews
Positive74.1%
Neutral5.6%
Negative20.4%

OCTACHRON MIDI Drum Sequencer

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

Bugs and requests

Ruismaker

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Ruismaker

No in-app purchases

None

OCTACHRON MIDI Drum Sequencer

No in-app purchases

Questions

Is Ruismaker free?
Ruismaker costs $4.99, with no in-app purchases.
Is OCTACHRON MIDI Drum Sequencer free?
OCTACHRON MIDI Drum Sequencer costs $9.99, with no in-app purchases.
Which has better reviews, Ruismaker or OCTACHRON MIDI Drum Sequencer?
Ruismaker is rated higher. Ruismaker averages 4.8 out of 5 from 58 ratings, while OCTACHRON MIDI Drum Sequencer averages 4.6 from 106 ratings.
Do Ruismaker or OCTACHRON MIDI Drum Sequencer have ads?
Neither Ruismaker nor OCTACHRON MIDI Drum Sequencer shows ads.
Which is updated more often, Ruismaker or OCTACHRON MIDI Drum Sequencer?
Ruismaker ships an update every 5 weeks, and OCTACHRON MIDI Drum Sequencer every 2 months. Most recently, Ruismaker was updated on October 24, 2026 and OCTACHRON MIDI Drum Sequencer on October 24, 2026.

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