MIDI vs GuitarChordFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI
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MIDIProbe is a pocket MIDI utility for iPhone and iPad that helps you discover, test, and troubleshoot MIDI devices (e.g., controllers, synths, mixers). Pick which endpoints to send to or listen to, fire off the exact MIDI commands you need, and watch a live, timestamped log to verify every message. • Discover USB, Bluetooth, and RTP network MIDI devices, and see detailed info like IDs, serial numbers, and transport type before selecting send/receive targets. - Send MIDI fast with interactive cards: - Notes, Control Change (CC), Program Change, Aftertouch, Pitch Bend; - System Common (Song Position Pointer, Song Select, Tune Request); - Real-Time (Start/Stop/Continue, Clock, Active Sensing, Reset); • Monitor inbound MIDI with a live log or grouped-by-command view, with filters for command types, clear controls, and timestamps. Typical use cases: • Reverse-engineer mixer control quickly: You have an X32 mixer and want to use a floorboard to mute/unmute channels. Connect both to MIDIProbe, discover the right endpoints, and watch which channel/CC/value combinations actually toggle mutes—then verify your floorboard sends the exact same messages before you risk it live. • Map a foot controller to a multi-FX unit: You want to configure a floorboard to switch presets/settings on your multi-effects processor. Use MIDIProbe to identify which Program Changes or CCs trigger the functions you need, then confirm the outgoing messages match your intended mapping. • Confirm keyboard controller channel routing: Check whether your keyboard is transmitting on the correct MIDI channel (or accidentally sending Omni), and verify splits/layers are hitting the channels your synth or app expects. • Validate DAW controller templates: Debug pad controller mappings for Ableton/Logic/Cubase—see exactly which notes/CCs each pad/knob/fader is sending, catch duplicated CC numbers, and confirm bank switching. • Troubleshoot “why doesn’t it respond?” fast: If your synth/module isn’t reacting, use MIDIProbe to confirm whether it’s receiving anything at all, whether the messages are on the wrong channel, or whether you’re sending the wrong command type. • Verify pitch bend and high-resolution CCs: Check pitch bend ranges and whether devices send 14-bit (MSB/LSB) pairs correctly for smooth parameter changes. • Build and test custom hardware/software: If you’re developing MIDI controller firmware or a MIDI iOS/macOS app, use MIDIProbe as your “known good” sender/receiver to test parsing, edge cases, and message timing. If you’re into this kind of thing, MIDIProbe is for you.
GuitarChordFlow
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GuitarChordFlow is your ultimate companion for mastering chords and musical progressions. Designed for musicians of all levels, it provides a seamless and professional environment to hone your skills. Key Features: Comprehensive Library: Explore a wide range of chords including Major, Minor, 7th, Sus, and more with high-quality audio previews. Smart Progressions: Generate random progressions by difficulty or build your own custom chord sequences. Interactive Practice Mode: Follow along in real-time with adjustable BPM, beats per chord, and visual cues. Immersive Feedback: High-resolution audio samples, a precise metronome, and haptic feedback. Progress Tracking: Stay motivated with detailed practice history, session statistics, and goals. Premium Design: A clean, modern iOS-style interface with full Dark Mode support and intuitive navigation.
Screenshots
Verdict
The clearest difference is price: MIDI at Free against GuitarChordFlow's $0.99. GuitarChordFlow's advantage is iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support 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
MIDI is free to download; GuitarChordFlow costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | MIDI | GuitarChordFlow |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Hitz | 晓飞 沈 |
In-app purchases
MIDI
No in-app purchases
GuitarChordFlow
No in-app purchases









