Comparison

Yellofier 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

Yellofier

Transform any sound into music with this innovative app. Record your voice, instruments, or everyday noises, and instantly create groovy tracks. Edit sounds and effects with an intuitive block-based interface, even without prior music knowledge.

Highlights
  • Record any sound
  • Automatic sound slicing for grooves
  • Create melodies with pitch changes
  • Innovative step sequencer
  • Bundled sounds by Boris Blank
  • Share your music
Features
Read full description

Yellofier makes anything into music. Record your voice, a musical instrument or everyday noises. Within seconds the app magically turns them into groovy music. #1 in Music (iPad) in 8 countries, top 10 in 50 countries. Top 5 in 3 countries (iPhone). Edit the sounds and effects by moving and twisting colored blocks. Yellofier doesn’t look like any other music program. You can create a full song within minutes – even without knowing anything about music! Create unique music with your own sounds and with the sounds of Yello’s musical maestro Boris Blank. The Yellofier also includes sounds and songs by some of the greatest musicians within electronic music. Anything can be yellofied! • Automatically slice your sound into 8 pieces and create a groove • Record up to 16 custom sounds per song, divided into two user sound banks • Combine sounds and effects in an innovative step sequencer • Change pitch of each step to create melodies • Multiple effects and variations • Share your work • 112 bundled sounds by Boris Blank • Songs and sounds by the finest artists within electronic music: Carl Craig, Henrik Schwarz, The Orb, Trentemøller, Booka Shade, Orbital, The The, Thomas Fehlmann, Charles Webster, Håkan Lidbo and more… • Record the sound of other Audiobus compatible apps • Play back the sound into other Audiobus compatible apps For best sound, use headphones. NOTE: Since version 1.2, the preview-sound function changed from single tap to long-press! So the functionality is not gone, but we changed to long-press to not interfere with the music. The demo tracks in Yellofier are under copyright protection. Learn more about Yellofier and discover more of Yello’s music at yello.com Produced by Boris Blank Developed by Jonatan Liljedahl Designed by Håkan Ullberg Concept by Håkan Lidbo Presented by Electronic Beats – Telekom’s international music program. electronicbeats.net Here is an online tutorial video: http://vimeo.com/62158758

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

Yellofier4 screens
OCTACHRON MIDI Drum Sequencer4 screens

Verdict

The call

The clearest difference is price: Yellofier at $5.99 against OCTACHRON MIDI Drum Sequencer's $9.99. OCTACHRON MIDI Drum Sequencer's advantage is update cadence (every 2 months vs every 4 months). On rating, review sentiment, ratings volume 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

Yellofier costs $5.99 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

Yellofier holds the better App Store score, 4.7 against 4.6. Both are backed by a comparable volume of ratings — 38 and 106 respectively. Written reviews point the same way: 82% of Yellofier's written reviews are positive against 81% of OCTACHRON MIDI Drum Sequencer's.

UpkeepUpdate frequency

Yellofier ships an update every 4 months, OCTACHRON MIDI Drum Sequencer every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 8 level
Yellofier versus OCTACHRON MIDI Drum Sequencer: the parameters behind the verdict, then further details
ParameterYellofierOCTACHRON MIDI Drum Sequencer
Price$5.99 — better$9.99
Rating4.7 (38 ratings) — better4.6 (106 ratings)
Positive reviews82.1% of reviews — better81.0% of reviews
Number of ratings38106 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.212.0 — better
Further details — not scored
Size54 MB12 MB
Age rating4+4+
DeveloperBoris BlankMarkus Teufel

Customer experience

Yellofier

All ratings36 ratings
Positive91.7%
Neutral8.3%
Negative0.0%
Written reviews184 reviews
Positive82.1%
Neutral6.5%
Negative11.4%

OCTACHRON MIDI Drum Sequencer

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

User reviews

Yellofier

From 38 App Store ratings

What we love

  • 🎵 Unique and intuitive music creation interface
  • 👍 Easy to learn and use for beginners
  • 🎨 Creative and inspiring sound manipulation
  • ⚡ Quick beat and loop generation
  • 🎧 High-quality pre-loaded Yello samples

Room to improve

  • 🐛 Crashes on iOS 8 and later versions
  • 🐛 App freezes and becomes unresponsive
  • 🐛 Microphone recording issues on newer iOS
  • 🚫 Cannot close app without restarting phone
  • 🚫 No longer appears in iOS sharing menu

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

Bugs and requests

Yellofier

Reported bugs

11 issues
  • App crashes on iOS 8 and beyond
  • Microphone input produces noise/distortion
  • App doesn't appear in iOS sharing menu
  • Cannot close app without phone restart
  • Audiobus compatibility broken
Show 6 more
  • GarageBand integration no longer works
  • Audio export only saves one loop instead of full song
  • App runs constantly in background draining battery
  • Bluetooth audio output distorted
  • Screen doesn't optimize for iPhone 5 display
  • App incompatible with iOS 13.3 on older devices

Requested features

20 requests
  • MIDI sync and clock synchronization
  • Ableton Link support
  • Audio Unit (AUv3) plugin support
  • Multiple sample recording slots
  • Sample editing and trimming capabilities
Show 15 more
  • Swing and triplet timing options
  • More than 4 tracks/channels
  • Extended recording length
  • Individual track panning
  • ADSR envelope controls
  • Undo/redo functionality
  • Separate track export (stems)
  • Custom sample bank saving
  • Audio import from other apps
  • Bluetooth audio output support
  • iPhone 5 display optimization
  • More preset sample banks
  • Ability to work on multiple songs simultaneously
  • Delay effects with tempo sync
  • LP/HP filters and additional effects

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

Yellofier

No in-app purchases

None

OCTACHRON MIDI Drum Sequencer

No in-app purchases

Questions

Is Yellofier free?
Yellofier costs $5.99, 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, Yellofier or OCTACHRON MIDI Drum Sequencer?
Yellofier is rated higher. Yellofier averages 4.7 out of 5 from 38 ratings, while OCTACHRON MIDI Drum Sequencer averages 4.6 from 106 ratings.
Do Yellofier or OCTACHRON MIDI Drum Sequencer have ads?
Neither Yellofier nor OCTACHRON MIDI Drum Sequencer shows ads.
Which is updated more often, Yellofier or OCTACHRON MIDI Drum Sequencer?
Yellofier ships an update every 4 months, and OCTACHRON MIDI Drum Sequencer every 2 months. Most recently, Yellofier was updated on November 6, 2026 and OCTACHRON MIDI Drum Sequencer on November 2, 2026.

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