fidelplayer is an audiophile music player for people who care about how their music actually sounds. Play your local library — including DSD (DSF/DFF), FLAC, ALAC, WAV, AIFF, MP3, AAC and more — through a real, high-precision DSP engine built on AVAudioEngine and custom audio units. HIGH-FIDELITY ENGINE - Bit-Perfect mode: play the source completely untouched at its native rate - Up/oversampling to 96 / 176.4 / 192 kHz - 10-band equalizer with Standard, Linear-Phase and Minimum-Phase FIR modes - AutoEQ import: apply your headphone correction curve in seconds - Convolution: room / headphone impulse-response correction - Crossfeed, HRTF binaural, stereo width, channel balance & polarity DSD DONE RIGHT - Streaming DSD-to-PCM decode with a deep Blackman-Harris filter; plays instantly - Reads embedded track tags; clip-safe level matching MORE - High-Frequency Reconstruction (HFR) to restore highs cut by lossy codecs - ReplayGain & loudness normalization, LUFS / DR readout - Gapless playback and crossfade - Export any track as a 24-bit FLAC with your full processing chain - Export your whole library to a folder as a backup fidelplayer is fully on-device: no ads, no tracking, no accounts. Nothing ever leaves your phone. fidelplayer Pro unlocks the high-fidelity features with a single one-time purchase. Every new install gets a 7-day free trial.