Best Midi Monitor Apps

248+ iOS apps curated and reviewed

4.4 avg rating
12 free apps
Updated November 2026

Every iPhone needs a few good midi monitor apps. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Midi Monitor Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MIDI WrenchMIDI WrenchFree4.6★ (71)NoNoOct 2026
2MIDI MonitorMIDI MonitorFree—NoNoJul 2026
3MIDI ScopeMIDI ScopeFree4.8★ (22)NoNoOct 2026
4Protokol - MIDI/OSC MonitorProtokol - MIDI/OSC MonitorFree4.6★ (16)NoYesNov 2026
5ShowMIDIShowMIDIFree4.8★ (18)NoNoOct 2026
6Midiflow Monitor (Audiobus)Midiflow Monitor (Audiobus)Free4.4★ (8)NoNoOct 2026
7MIDI + OSC Monitor Logger ToolMIDI + OSC Monitor Logger ToolFree—NoNoOct 2026
8MIDI AidMIDI AidFree was $0.99—NoNoNov 2026

Top Picks for Midi Monitor

MIDI Wrench#1

MIDI Wrench by Christian Schoenebeck d/b/a Crudebyte

MIDI Monitor & MIDI Controller
Editor's Choice
🎵 Music
4.6😊(71 ratings)
Free
MIDI Wrench screenshot 1
MIDI Wrench screenshot 2
MIDI Wrench screenshot 3
MIDI Wrench screenshot 4
MIDI Wrench screenshot 5

This app acts as a versatile tool for managing MIDI devices on iOS. It allows you to monitor incoming MIDI messages in real-time and send your own MIDI commands using virtual controls. It's useful for troubleshooting MIDI setups and understanding device communication.

What We Love

  • 👍 Essential for MIDI troubleshooting
  • 👍 Free and maintained
  • 👍 Reveals MIDI activity
  • 👍 Solves connection issues
  • 👍 Easy to use
  • 👍 Works as advertised
  • 👍 Brilliant for diagnostics
  • 👍 Handy tool
  • 👍 Great for checking CC values
  • 👍 Useful for testing
  • 👍 Simplifies MIDI operations
  • 👍 Reliable connection reset
  • 👍 Good customer service
  • 👍 Elegant monitor/controller
  • 👍 Lightweight and quick
  • 👍 Solved connection problems
  • 👍 Useful for detecting MIDI sources
  • 👍 Helps diagnose hardware issues
  • 👍 Confirms MIDI signals
  • 👍 Good for remote DAW testing
  • 👍 Fantastic for NRPN messages
  • 👍 Listens to network well
  • 👍 Attractive and easy interface
  • 👍 Configurable knobs
  • 👍 Resolves MIDI issues instantly
  • 👍 Reveals what's going on

Room to Improve

  • ❌ No sound output
  • ❌ Cannot import .mid files
  • ❌ Small keyboard keys
  • ❌ Limited MIDI I/O selection
  • ❌ Few features
  • ❌ No audio when pressing keys
  • ❌ Cannot clear screen, only pause
  • ❌ Keys are too small to play
  • ❌ No audio output
  • ❌ No MIDI out capabilities
  • ❌ Fixed MIDI CC numbers
  • ❌ No filtering of MIDI messages
  • ❌ App needs updates
  • ❌ Lack of active development
MIDI Scope#3

MIDI Scope by Kinematic Systems

MIDI Monitor
Worth Considering
🎵 Music
4.8(22 ratings)
FreeIn-App Purchases
MIDI Scope screenshot 1
MIDI Scope screenshot 2
MIDI Scope screenshot 3

Monitor MIDI activity on your iOS device. Filter events by type, group, or channel, with detailed packet interpretation in decimal and hexadecimal. Send feedback directly to the developer.

More Midi Monitor apps to explore

FAQ about Midi Monitor

What are the best midi monitor apps for iPhone?
MIDI Wrench tops our midi monitor apps ranking as of November 2026, with a 4.6-star average from 71 App Store ratings, and it's free to download.
Yes — 12 of the top midi monitor apps we rank are free to download, including MIDI Wrench and MIDI Monitor.
MIDI Wrench has no ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 248+ midi monitor apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.