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Spectro vs mp3.now

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

Spectro compared with mp3.now
DetailSpectro logo Spectromp3.now logo mp3.now
What it doesDetects fake lossless audio files on Mac by analyzing spectral content Free audio conversion and editing with no signup required
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelPaid Freemium
PricingPersonal: $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. Guest (free): 10 conversions/day, 10 MB limit. Free Account (free): 20 conversions/day, 50 MB limit. Premium: €9.99/month (€95.99/year) with unlimited conversions, 200 MB limit. Premium Plus: €29.99/month (€287.99/year) with 1 GB limit and advanced features.
Key features
  • 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
  • Convert between 50+ audio formats including MP3, WAV, M4A, FLAC, AAC, OGG
  • Compress MP3 files with bitrate control (128, 192, 256, 320 kbps)
  • Trim and cut audio clips by start and end time
  • Merge multiple MP3 files into one
  • Normalize audio volume levels
  • Change audio speed or bitrate
  • Extract audio from video files (MP4, MOV, MKV, AVI, WebM)
  • REST API for programmatic conversion with JSON requests
  • Automatic file deletion after 24 hours for guests, 7 days for free accounts
  • Batch convert up to 10 files at once on free account
What makes it different
  • 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
  • No signup required to start converting
  • Privacy-first approach with no tracking or sharing of uploaded files
  • Core tools remain free forever
  • Fast conversions optimized to take seconds not minutes
  • Simple interface with no dark patterns or forced signups
Community votes00
DR (Domain Rating by Ahrefs)7 +2 (up) since last check51 no change since last check
Trust Flow (Majestic)717
Citation Flow (Majestic)2233
Referring domains (Majestic)27123

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