Overview: Can iPhone 5S/5C/4/4S iOS 7 Play FLAC Files?
FLAC, short form for Free Lossless Audio Codec, is a compressed lossless audio format supported by more hardware devices and mobile devices. Digital audio compressed by FLAC’s algorithm can typically be reduced to 50–60% of its original size but doesn’t sacrifice sonic quality. Thus FLAC is the better choice for lossless audio. However, to enjoy and play FLAC music on iPhone is not quite easy for music audiophile as FLAC is not a native support audio format by iPhone 5S, iPhone 5C, iPhone 4S, iPhone 4 and is not natively supported by the latest iOS system iOS 7.
To play FLAC on iPhone 5S, iPhone 5C, iPhone 4S, iPhone 4, one method is to download a FLAC player for iOS from iTunes Store. The recommend method is to convert FLAC to iPhone friendly audio format. If you do not care about the audio quality, you can convert FLAC to MP3 to play FLAC on iOS 7 and iPhone 5S, iPhone 5C, iPhone 4S, iPhone 4. If you are audiophine and want to pursue audio quality, you can convert FLAC to iOS 7 and iPhone 5S, iPhone 5C, iPhone 4S, iPhone 4 supported Apple Lossless ALAC.