withFlac

Play MP3 and lossless FLAC untouched. Wi‑Fi transfer, conversion, tag editing in one app. Pro: bit-perfect output, 10-band EQ, leveling, auto & batch tags. Fully loaded.

Enjoy FLAC on your iPhone, effortlessly. withFlac plays FLAC and other lossless files as they are, with no conversion. Your library is organized by album, with favorites, lock-screen controls and a sleep timer.

Move files over Wi‑Fi

• Turn on the transfer server in the app and open the address (or QR code) in your computer's browser • Drag files or whole folders onto the page and they land on your phone • Everything happens on your home network, with no cloud account • Optional: keep transfers running while the phone is locked

Convert formats and manage tags

• Convert between FLAC, ALAC, AAC, MP3 and WAV (16/24-bit preserved) • Edit title, artist, album, year, genre and album art • CUE sheet support: play a single-file album track by track, or split it into files • Delete originals after converting, batch convert or delete many files • The same tools in the app and in the web page

Playback

• FLAC, ALAC, AAC, MP3, WAV, AIFF • Album gallery, sorting, search, favorites, shuffle and repeat • Background playback, lock-screen and headphone controls • Sleep timer (after N minutes or at the end of the current song, with fade-out) • Light/dark mode, six accent themes, English / Korean / Japanese

withFlac Pro — one purchase, yours forever

• Bit-perfect output: the DAC runs at the song's own sample rate, no resampling • 10-band equalizer with presets and preamp, ±12 dB per band • Volume leveling: even out songs and albums with ReplayGain tags • Auto tag & cover lookup: fill in a song's or album's tags and artwork in one go • Batch tag editing in the web page: edit many songs at once, convert filenames to tags and back, number tracks • Playlists and crossfade • No ads

Your music stays on your phone; nothing is uploaded to any server. Tag lookup sends only the search terms you type.