Foldertone
iPhone app ยท by Victor Kuznetsov (@wiltodelta)
Listen to the music files you already own on your iPhone. Choose a folder in Files and it becomes a playlist that keeps itself up to date. Coming soon to the App Store.
A folder is a playlist
Every song in a folder and its subfolders lands in one list. Add, rename, move or delete music in Files, and the playlist follows.
Your files, left alone
FLAC, ALAC, MP3 and other common formats play with the titles and covers already in your files. Foldertone only reads your music and collects no data.