Everything here works in the signed release build on our Apple-silicon test Mac. Each item lists its current limits.
100,000One library from your files, folders, servers and cloud
Up to 100,000 songs and videos, with tags, covers, search, albums and artists. Duplicate cleanup keeps one entry per song and never deletes files.
The library rescans at launch or when you press Refresh; it does not watch folders. WMA and AVI files are not indexed yet.
10Band equalizer
Ten bands, from 31 Hz to 16 kHz.
The EQ affects Auralyn only.
Movies and TV shows too
Switch between Music and Video. Watch now, Movies and TV Shows, resume where you stopped, the next episode, full-screen controls, a choice of audio tracks, and subtitles: text files and tracks, plus Blu-ray picture subtitles (PGS).
Movies and episodes are recognised from their file names. Videos with DTS or TrueHD sound play without sound for now.
Enhance video
Sharpens and upscales video as it plays. On macOS 26 or later you can choose Apple's AI upscaler instead.
Off by default. Apple's upscaler takes video up to 720p; tested on one Mac.
0–12 sCrossfade and gapless albums
Plus volume leveling.
These apply only to local audio files up to 64 MiB. Leveling sets one fixed gain per track; it is not ReplayGain.
Mixes and radio from your library only
Home mixes, song and artist radio, Autoplay similar songs, “Shape this session”, and more-like-this or less-like-this feedback. They are worked out on your Mac from your own collection and listening history.
They work without a network request or an AI model. Some smart playlists need listening history first.
Plex and cloud storage
Sign in to Plex, Google Drive, Dropbox, OneDrive, Box or pCloud on the service's own page, and play from there. Download songs for offline play where the source allows it.
Each was tested with one account of our own. Auralyn only reads your files.
An assistant on your Mac
Optional and experimental. Ask in your own words, such as “play something calm”, and it picks from your library. It runs on your Mac and sends nothing.
A one-time download of about 5 GB when you set it up; 16 GB of memory recommended. An answer takes about 6 seconds, and it sometimes asks back instead of playing.
Sound match
Experimental. Listens to how your songs sound, on your Mac, to keep a session close or explore further.
Off until you turn it on, in Now Playing. Still being tuned on large libraries.
Your files stay as they are
Fix tags and artwork inside the app without rewriting your files.
Edits live in Auralyn only. Only byte-identical copies are merged automatically.
Synced lyrics
Time-synced lyrics from your own LRC files, or found online when a song has none.
The online lookup (LRCLIB) is on by default; turn it off in Settings → Privacy.
macOS media controls
Control Center, Now Playing and the Play/Pause key.
Checked so far on one Mac running macOS 27.