Free per-app volume control for macOS with real VU meters, no audio driver required
Detects fake lossless audio files on Mac by analyzing spectral content
Stage
Not given
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Founded
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Based in
DE
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Pricing model
Free
Paid
Pricing
Free
Personal: $24.99 USD (one-time, 1 Mac). Duo: $39 USD (one-time, 2 Macs). Both plans include unlimited file scans, offline and private analysis, free updates, and 30-day money-back guarantee. Free trial: 100 tracks with no time limit and no account required.
Key features
Per-app volume sliders and mute controls
Real VU meters per app and master
No audio driver installation required
Output device switcher for speakers, AirPods, and audio interfaces
Hide specific apps from the volume control list
Drag-to-reorder app arrangement with persistent settings
Automatic per-app level memory across sessions
In-app self-updating mechanism
Full FFT spectral analysis with automatic LOSSLESS, MEDIUM, or FAKE verdict per track
Batch scanning and CSV export of results with verdict, format, bitrate, cutoff frequency and confidence score
Automatic macOS Finder color tags applied directly to files
Rekordbox XML import without drag and drop required
Support for WAV, AIFF, FLAC, ALAC, MP3, AAC, Ogg Vorbis and Opus formats
Folder watch mode with automatic analysis of new tracks
M3U and M3U8 playlist import for Traktor, VirtualDJ and other software
Bulk spectrogram PNG export for analyzed tracks
Completely offline operation with no internet or account required
99% accuracy on transcoding detection based on peer-reviewed research across 2,512 songs
What makes it different
Free solution to a macOS gap that Windows provides natively
No system audio driver installation required
Real analog-style VU meters rather than decorative animations
Part of a complete free Adelvo audio toolkit
Fully signed and notarized for security
Native macOS application optimized for Apple Silicon and Intel with full sandboxing and notarization
One-time purchase with free updates, never a subscription or per-track fee
30-day money-back guarantee on all purchases
Based on peer-reviewed research from 2009 ACM Multimedia & Security Workshop
Works with existing DJ workflows including Rekordbox, Traktor and VirtualDJ
AppVol
Spectro