ABSeq vs MixMaster A/B

ABSeq is an A/B comparison tool for producers and mixing and mastering engineers. Load two to four versions of a mix, a master or a reference track and switch between them in sync. Auto Gain matches their loudness first, so the louder version can't win by default. COMPARE MIXES LEVEL-MATCHED • One large A/B key switches tracks without losing your place in the song • Auto Gain matches every track to the quietest one by integrated loudness (LUFS) • Compare a new mix with the last one, a master with the pre-master, or your song with a reference track BLIND A/B TEST • ABSeq hides which track is which and shuffles them every round • Pick the one you prefer in each round, for 1 to 50 rounds • At the end, ABSeq shows which mix you picked and how often • Every round is level-matched, so you're judging the mix and not the volume LUFS METER AND TRUE PEAK • Integrated LUFS and true peak (dBTP) on every track • How much Spotify, Apple Music, YouTube, Tidal, Amazon Music and Deezer will turn the track down SEE WHAT YOU HEAR • Live spectrum analyzer • Pro: loudness graph, tonal balance view and an A/B difference curve that shows where two mixes differ, band by band SEQUENCER • Steps through your tracks for you, in time with each file's detected tempo • Choose the beat division and step order, then just listen CAR TEST AND HEADPHONE CHECK • Keeps playing and switching with the screen locked • Lock-screen controls play, pause and switch tracks • Works over Bluetooth and wired headphones, speakers and car audio YOUR FILES, YOUR DEVICE • Opens WAV, AIFF, FLAC, MP3, M4A and AAC files from the Files app • Everything is analyzed on your device. No account, no tracking. • Save sessions and reopen them with their files in place • Designed for iPhone and iPad, with two-screen layouts on iPad and foldable iPhone ABSEQ PRO Comparing, level matching, blind tests, LUFS and the spectrum are free. Pro adds the loudness, tonal balance and A/B difference graphs, unlimited saved sessions (the free tier keeps 3) and iCloud sync of sessions and their audio across your devices. Pay once for Lifetime, or subscribe monthly. Payment is charged to your Apple Account at confirmation. Monthly renews automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel in Settings → Apple Account → Subscriptions. Terms: https://www.abseq.app/terms Privacy: https://www.abseq.app/privacy Help: https://www.abseq.app/help Support: https://www.abseq.app/support

COMPARE AUDIO FILES LIKE A PRO MixMaster A/B is the essential tool for anyone who needs to compare audio files with precision and confidence. Whether you're a music producer evaluating different mixes, an audio engineer comparing masters, or an audiophile testing file formats, MixMaster A/B gives you the tools to hear every difference. INSTANT A/B SWITCHING The heart of MixMaster A/B is its seamless switching between two audio files. Load your files, hit play, and toggle between A and B instantly—no interruption, no delay, perfectly synchronized. This is how professionals make critical listening decisions. VISUAL FEEDBACK • Waveform Visualization: See the amplitude and dynamics of both files at a glance • Real-time Spectrum Analyzer: Watch the frequency content as your audio plays • Side-by-side Comparison: Visual confirmation of what your ears are hearing PRECISION PLAYBACK CONTROLS • Loop Regions: Focus on specific sections that matter most • Synchronized Playback: Both files stay perfectly in sync when switching • Instant Toggle: Switch between A and B with a single tap • Pause, Play, Repeat: Full control over your listening session PERFECT FOR: Music Producers • Compare different mix versions • Evaluate mastering changes • Test compression and EQ settings • Make confident final decisions Audio Engineers • Compare before/after processing • Evaluate different mastering approaches • Test format conversions • Quality control checks Audiophiles • Compare file formats (MP3 vs. FLAC vs. WAV) • Test different rips or sources • Evaluate audio quality • Settle debates with data Content Creators • Compare audio edits • Test different export settings • Evaluate noise reduction • Choose the best take WHY MIXMASTER A/B? Traditional audio comparison means switching between apps, losing your place, and relying on memory. MixMaster A/B eliminates the guesswork with instant, synchronized switching and visual feedback. You'll hear differences you never noticed before. SIMPLE, FOCUSED, POWERFUL We built MixMaster A/B to do one thing exceptionally well: compare audio files. No bloated features, no complicated workflows—just load two files and start comparing. The interface is optimized for one-handed use in portrait mode, perfect for quick comparisons on the go. SUPPORTED FORMATS • MP3 • M4A / AAC • WAV • AIFF • And other common audio formats PRIVACY FIRST • All processing happens on your device • No audio files uploaded to servers • Your audio stays private NOW COMPLETELY FREE! PROFESSIONAL RESULTS, MOBILE CONVENIENCE Whether you're in the studio, at home, or on the go, MixMaster A/B gives you professional-grade A/B comparison in your pocket. Make better decisions, hear more detail, and trust your ears. Download MixMaster A/B today and discover what you've been missing.