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EarChord vs MidiSlayer

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

EarChord compared with MidiSlayer
DetailEarChord logo EarChordMidiSlayer logo MidiSlayer
What it doesChord detection in your browser Learn to read music by playing it on a MIDI keyboard
StageNot given MVP
FoundedNot given Not given
Based inNot given GB
Pricing modelFree Freemium
PricingNot given Free: Beginner lessons, Note Flashcards, Blitz game, daily Cascade challenge, Pop Loop jam session, and 4 playable pieces. MidiSlayer full version: $49.99 USD one-time purchase (prices vary by country in local currency).
Key features
  • Chord progression detection
  • Key identification using Krumhansl-Schmuckler profiles
  • Tempo/BPM detection from onset envelope
  • Interactive timeline of detected chords
  • Roman numeral chord notation
  • Export chord list as text or file
  • Supports MP3, WAV, M4A, AIFF, FLAC and OGG files
  • MIDI keyboard input with real-time feedback
  • Interactive beginner lessons from basic note identification to reading both clefs
  • Note flashcard training with adaptive difficulty
  • Library of 69 classical pieces at varying difficulty levels
  • MusicXML file import for custom sheet music
  • Wait and Tempo modes for learning pieces at your pace or with a metronome
  • Arcade games including Blitz and Cascade
  • Exam mode with skill-based ranks and timed challenges
  • Progress tracking and performance analytics
  • Offline use after one-time license activation
What makes it different
  • Runs entirely in browser with no uploads or server processing
  • Completely free with no daily limits or account required
  • Uses transparent signal processing instead of hidden machine learning
  • Shows actual detection results so you can see where it guesses
  • Buy once with no subscription; perpetual license with all updates through v1 included
  • MIDI input provides exact note detection unlike acoustic microphone-based systems
  • Works on four platforms: macOS, Windows, Linux and iPad
  • Adaptive algorithm adjusts difficulty based on what you miss vs. nail
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last check16 no change since last check
Trust Flow (Majestic)80
Citation Flow (Majestic)2322
Referring domains (Majestic)1136

4 details filled in for both companies.

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