Fact sheet · as of 24 October 2026

Truffle – Music Tag Editor

Truffle repairs the metadata of a music library the user already owns: title, artist, album, album artist, genre, year, track number, cover, tempo and key. It identifies each track by its sound and through catalogues, proposes corrections field by field with their source, and writes only what the user confirms.

Name: Truffle – Music Tag Editor (word mark: Truffle)

Developer: Marian Moritz Hildebrand, independent developer and DJ

In the Mac App Store: since 29 September 2026 (version 1.0)

Mac App Store: https://apps.apple.com/app/id6806763735 (Apple ID 6806763735)

Website: https://truffle-app.com

Press kit: https://truffle-app.com/press/

Price: €59.99 one-time including VAT, as an in-app purchase; no subscription, updates free. In other countries the App Store sets the price in local currency.

Try it first: free download; analyses 100 tracks and writes 20, no feature locked

System: macOS 14 (Sonoma) or later, Apple Silicon only

Languages: app and website in 20 languages

Eight sources: Apple/iTunes Search, MusicBrainz, Cover Art Archive, Deezer, Beatport, a web lookup, Apple’s audio recognition and Truffle’s own audio analysis for tempo and key, which runs on the Mac without an internet connection

Five libraries: Apple Music/iTunes, local folders (17 file extensions, from mp3 via flac to aiff), rekordbox, Serato, Traktor

Classical recordings: recognised by their sound, even when a file is only called “Track 07”; the work as listed for that recording, with catalogue numbers such as BWV or Op., plus performers, album, year and the cover of the recording

Boundary: Truffle never writes into a DJ program’s database; cues, beatgrids and crates stay untouched. Tempo and key are only written on an explicit click.

Tidying up: duplicates side by side (the file on the Mac always stays, nothing is deleted without asking), album alignment, bulk edit of one field across many tracks with a preview of every line

Undo: every change is logged, the original is backed up first, and anything applied can be undone, one by one or as a whole session, even days later. Only deleting cannot be undone by Truffle.

Privacy: no account, no telemetry, no advertising, no tracking

Press contact: Marian Moritz Hildebrand, mail@truffle-app.com. Review codes for the full version are available on request.

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mail@truffle-app.com · https://truffle-app.com/impressum
