Best apps like FuncBud Math Sequencer & Synth

8+ similar apps compared and reviewed

4.2 avg rating
1 free apps
Updated September 2026

FuncBud Math Sequencer & Synth is great, but it's not the only option. Explore 8+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to FuncBud Math Sequencer & Synth

SAND: Audio MIDI Sequencer#1

SAND: Audio MIDI Sequencer by Matteo Caldari

Record & Make Music, Host AUv3
Editor's Choice
🎵 Music
4.6😊(86 ratings)
FreeIn-App Purchases
SAND: Audio MIDI Sequencer screenshot 1
SAND: Audio MIDI Sequencer screenshot 2
SAND: Audio MIDI Sequencer screenshot 3
SAND: Audio MIDI Sequencer screenshot 4
SAND: Audio MIDI Sequencer screenshot 5
SAND: Audio MIDI Sequencer screenshot 6

This app is a grid-based music sequencer that allows users to create compositions using AUv3 plugins and external MIDI devices. It offers extensive tools for arranging clips, editing notes, automating parameters, and routing MIDI.

What We Love

  • 👍 Great UI and features
  • 💡 Potential for music creation
  • 🚀 Fast and creative workflow
  • 👍 Easy to use, no instructions needed
  • 💡 Most usable studio on small screen
  • 👍 Simple yet feature-filled
  • 👍 Excellent developer understanding of workflow
  • 👍 Great on phone
  • 👍 Brilliant concept
  • 👍 Dope and simple
  • 👍 Solid experimental clip launch
  • 👍 Minimalist UI
  • 👍 Good value
  • 👍 Smooth workflow
  • 👍 Great start
  • 👍 Easy to use
  • 👍 Clean and easy to use
  • 👍 Flexible and easy to use as groove box
  • 👍 Good for beginners
  • 👍 Fast beat creation
  • 👍 Good for iOS music making
  • 👍 Accessible developer
  • 👍 Fun to use
  • 👍 Brilliant app
  • 👍 Great for AUV3s
  • 👍 Deep yet simple interface
  • 👍 Refreshingly simple
  • 👍 Powerful and simple
  • 👍 Good for composing
  • 👍 Great on small screens
  • 👍 Well-organized main interface
  • 👍 Mappable features

Room to Improve

  • 🐛 Record function always starts
  • 🐛 Sand not opening in overview
  • 🐛 Integration with other apps seems off
  • 🐛 Record does not pick up data
  • 🐛 Cannot save ideas from one app to another
  • 🐛 Auv3 interfaces don't scale well
  • 🐛 Not clearly explained it's a paid app
  • 🐛 Not intuitive to use yet
  • 🐛 Note editing, snapping/quantization awkward and buggy
  • 🐛 Sand won't run within AUM anymore
  • 🐛 Sand not recognized within AUM
  • 🐛 Sand wouldn't recognize other apps as host
  • 🐛 Rendering issues
  • 🐛 Editing notes in pitch grid flies up
  • 🐛 Entering note values difficult
  • 🐛 Changing note length has issues
  • 🐛 Bugs not worked out, more brought in
  • 🐛 Clips out of sync when manually triggered
  • 🐛 Needs more detailed instructions
  • 🐛 Unpredictability for creating new notes
  • 🐛 Selecting notes for editing difficult
  • 🐛 Synchronizing between tracks problematic
  • 🐛 Not enough features for usefulness
  • 🐛 Paid for a half-finished app
  • 🐛 Too cluttered to use on iPhone
  • 🐛 Basic functionality
  • 🐛 Cannot change sequence size (meter)
  • 🐛 Cannot set velocity and modulation parameters
  • 🐛 No CC automation recording
  • 🐛 Few slots for patterns
  • 🐛 Does not work with most other iPad instrument apps
  • 🐛 Misleading advertising claims
  • 🐛 Audio integration needed
  • 🐛 Notes editing/selection/moving process is a pain
  • 🐛 No BT headphone support
  • 🐛 Needs more polish
  • 🐛 Occasional crashes
  • 🐛 Useless at v1.0.1
  • 🐛 Less than 50% of synths/plugins show up
  • 🐛 Many plugins don't work properly
  • 🐛 Money better spent elsewhere
  • 🐛 App prompts for purchase again after buying
  • 🐛 Minimalistic beginnings
  • 🐛 Missing standard sequencer features
Kaleidoscope Echo#2

Kaleidoscope Echo by 4Pockets.com

MIDI Note Echo
Strong Contender
🎵 Music
5.0(2 ratings)
$12.99
Kaleidoscope Echo screenshot 1
Kaleidoscope Echo screenshot 2
Kaleidoscope Echo screenshot 3
Kaleidoscope Echo screenshot 4
Kaleidoscope Echo screenshot 5

This app processes MIDI messages to create delayed and manipulated note sequences, simulating audio delay effects with added musical control. It allows for pitch and velocity manipulation of repeats, scale-based harmonization, and real-time harmony generation.

Midiflow#3

Midiflow by Johannes Doerr

MIDI Router and Processor
Worth Considering
🎵 Music
4.0😐(39 ratings)
$7.99In-App Purchases
Midiflow screenshot 1
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Midiflow screenshot 5

This app enables seamless MIDI data transfer between different applications on your device. It allows for app synchronization, routing MIDI from sequencers to synths, and assigning keyboard zones. Users can save and recall configurations, and monitor MIDI activity.

What We Love

  • 👍 Comprehensive MIDI routing
  • 💡 Flexible MIDI manipulation
  • 🚀 Powerful functionality
  • ✨ Intuitive interface (for some)
  • ✅ Works in background
  • 🛠️ Good for complex setups
  • 🔄 Constantly updated (historically)
  • 📚 Well-documented
  • 💡 Re-maps MIDI messages
  • 💡 Splits/layers sounds
  • 💡 Controls external gear
  • 💡 Essential for MIDI setups
  • 💡 Connects old to new MIDI
  • 💡 Solves MIDI keyboard issues
  • 💡 Ultimate MIDI command center
  • 💡 Great for live performance
  • 💡 Swiss Army knife of MIDI
  • 💡 Breathes life into synths
  • 💡 Best MIDI workflow reroute
  • 💡 Solves MIDI problems
  • 💡 Useful for live sound
  • 💡 Easy to use
  • 💡 Essential MIDI tool
  • 💡 Inspires creativity
  • 💡 Professional and complete
  • 💡 Missing link for MIDI
  • 💡 Elegant and useful
  • 💡 Incredible potential
  • 💡 Excellent MIDI app
  • 💡 Solid live MIDI solution
  • 💡 Fantastic MIDI router
  • 💡 Great product
  • 💡 Very useful
  • 💡 Nicely done interface
  • 💡 Brilliant MIDI software
  • 💡 Outstanding app
  • 💡 Good stuff
  • 💡 Easy routing
  • 💡 Powerful utility
  • 💡 Very versatile
  • 💡 Works flawlessly

Room to Improve

  • 🐛 Frequent crashes
  • 🐛 App doesn't open
  • 🐛 App closes immediately
  • 🐛 Bugs and quirks
  • 🐛 Unreliable for live use
  • 🐛 Layout issues
  • 🐛 Navigation problems
  • 🐛 No response from support
  • 🐛 Forum is dead/locked
  • 🐛 In-app purchases complex
  • 🐛 Does not work with AUM
  • 🐛 Pricing too complicated
  • 🐛 Note off velocities ignored
  • 🐛 Crashes during editing
  • 🐛 Edits lost after crash
  • 🐛 Backup song lost
  • 🐛 Does not work with GarageBand
  • 🐛 MIDI splitter issues
  • 🐛 No back/cancel button
  • 🐛 Crashes when searching devices
  • 🐛 Not working with iOS 14
  • 🐛 Not working with iOS 15
  • 🐛 Not working with iOS 16
  • 🐛 Inconsistent MIDI implementation
  • 🐛 Some IAPs not in bundle
  • 🐛 Overpriced
  • 🐛 Interface a mess
  • 🐛 Not logical
  • 🐛 Does not record to GarageBand
  • 🐛 Does not work with SampleTank in background
  • 🐛 Remapping doesn't work
  • 🐛 Bluetooth connectivity crashes
  • 🐛 CC mapping issues
  • 🐛 Does not pass release velocity
  • 🐛 App appears abandoned
  • 🐛 Disingenuous standalone description
  • 🐛 Requires further payment
  • 🐛 Support is impossible
  • 🐛 No acknowledgment of help requests
  • 🐛 Forum sign-up prevents requests
  • 🐛 Ignored questions on forum
  • 🐛 Rip off
  • 🐛 Wasted money
  • 🐛 Can't do what I want
  • 🐛 Not compatible with iOS 8/10
  • 🐛 No dark mode
  • 🐛 Some MIDI messages blocked/morphed
  • 🐛 Remapping adds code, doesn't replace
  • 🐛 Limited usefulness
  • 🐛 Many IAPs
  • 🐛 Some apps don't work
  • 🐛 No MIDI input selection in SampleTank
  • 🐛 Fixed MIDI channels in Korg iPolysix
  • 🐛 Does not work with Arturia iMini/iProphet
  • 🐛 Needs to be universal app
  • 🐛 Some functions need buying
  • 🐛 Stopped using it
  • 🐛 App shutdown on iPad 2
  • 🐛 Doesn't search nearby devices
  • 🐛 Force closes on remapping
  • 🐛 GUI problems
  • 🐛 $11 dollars wasted
  • 🐛 App doesn't load after paid updates
  • 🐛 No return button
  • 🐛 Layout issues on iPhone
  • 🐛 Filter out Note Off messages missing
  • 🐛 Frequent crashes while editing
  • 🐛 Mapped CCs dropped during performance
  • 🐛 Incomplete standalone app
  • 🐛 No AUv3 plugin version

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