Find and remove duplicate tracks in your Serato DJ library
Learn to read music by playing it on a MIDI keyboard
Stage
Not given
MVP
Founded
Not given
Not given
Based in
US
GB
Pricing model
Paid
Freemium
Pricing
$99 (launch pricing, regularly $129) - one-time purchase for macOS
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
Compares 10 metadata parameters
Reads Serato database directly with no exports required
Auto-select keepers by 14 conditions
Archive or trash duplicate files with automatic crate cleanup
100% local processing with no cloud uploads
Native Apple Silicon support for M1 through M5
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
Designed exclusively for Serato DJ Pro with direct database access
Completely private with 100% local processing
Works on external drives and all modern Macs
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
Dupes
MidiSlayer