Developer: BitPerfect Sound Inc.

Current Version: 3.1.1

Last Updated: 12 months ago

Download Size: 2.9 MB - Download


BitPerfect is a simple, easy to use, audiophile grade music player that works in conjunction with iTunes to deliver the highest possible sound quality.

Localization included in Japanese, French, Dutch, Danish, and Russian only

Requires OS X 10.7 or higher.
Requires 64-Bit CPU.

Unobtrusive, minimal UI.
"Bit Perfect" output.
Exclusive ("hog") mode.
Gen-IV 64-bit playback engine.
Plays native DSD files in "Hybrid-DSD" format with DSD-compatible DACs [Companion product "DSD Master" required to generate "Hybrid-DSD" files.]
Gapless playback.
Full memory playback with triple-buffering to ensure continuous playback of large files.
Automatic sample rate switching.
Choice of sample rate converters for up- and down-sampling.
Dithered bit depth reduction and volume control.
Support for iTunes "sound check".
Integer Mode playback - on supported DACs and supported versions of OS X (requires OS X 10.9 and above).
Support for AirPlay (requires OS X 10.8 and above).
Playback from networked drives.

Icon design by Doug Stewart (


Release Notes:

Minor optimizations to the playback engine.
Fix an uncommon crash when playback stops or transitions between tracks.
Fix a crash during playback for certain kinds of DAC.


Most Helpful Reviews

Version 2.0.1
Review by WMON DJ

Exceptional Audio, Fine Support - I recently upgraded my Mac audio chain to include a new DAC (Digital Audio Converter.) My intent was to get the best audio possible from my Mac Mini playing through to my Yamaha Natural Sound receiver. In the process I downloaded and installed BitPerfect. It made a significant difference in the audio quality that I heard from iTunes. Just the increase in audio quality would have been sufficient to warrant a five star review for BitPerfect. However, along the way I needed support from this vendor. I must say that their support was response, informative and extremely helpful. This is a product that accomplishes what it sets out to do--specifically improve the audio quality coming from your Mac.

Found helpful by 17 out of 18 people
Version 3.0
Review by steve-mk

DON’T BUY - I’m sure this app is great in theory, but I bought it, installed it, and it doesn’t open at all. Wasted $10. Wait until others have successfully tested this on Mac OS X El Capitán.

Found helpful by 6 out of 13 people

More Reviews for Current Version

Version 3.1.1
Review by ucrazykid

Truly Fantastic - If you have a golden ear or listen to music critically you are going to love this App. The improvement is real and the adjustments it allows to be made have a real perceiveable effect. I highly recommend it. A few caveats: 1. if you are listening to music streamed from Apple Music, it does nothing (it cannot, Apple has made sure of it). 2. if your stored music is in a lossy format (MP3, etc.) do not bother with this, you cannot get the full benefit as the “bits” just aren’t even there to begin with. 3. if you are listening through the speakers in your laptop… not gonna hear a differnce. 4. if you are sending signal wirelessly to your stereo over over AirTunes, the signal is forced to 16/44.1 as that is the limitation of an Airport Express. Sound quality is a little better, but you don’t get full benefit. The only problems I have had with this App is from interference from native OS X problems. Listening from quality inear headphones (Ultimate Ears SuperFi 5Pro) I was surprised how good the headphone jack on the MacBook Pro could sound. Sending a signal via optical to my headphone DAC/Amp it gets even sweeter! Sending it to my 2-channel rig’s DAC the sound is quite smooth with no grain and added soundstage depth. Great work!

Found helpful by 4 out of 4 people
Version 3.1.1
Review by MacMiniMcintoshMan

BitPerfect works great if you have a great stereo! - I find Bitperfect to be a very effective product! It makes my iTunes sound like a really high end CD player. I would describe the improved sound as: the digital audio file being “restored”, so that the soundstage becomes fuller and the music sounds “rounder”, more dynamic, more full of tone and timing. It reduces the harsh “digital” quality and presents the music mush closer to the ideal, original, pleasant sounding analog recording. That said, it is designed for Audiophile use, and if you don’t have really good speakers and a good external DAC, you probably won’t hear any difference in the details. It is impossible to do a live “AB” compare of iTunes to iTunes with Bitperfect running. But I did ”AB” “Normal” iTunes against a really clean record, and then iTunes/Bitperfect against the same record. The difference was very obvious, Bitperfect makes the music noticeably more dynamic, focused, transparent and overall pleasant. The best $9.99 you can spend on improving an iTunes based HiFi System. My signal chain: used 2009 MacMini (stock) – iTunes (all 16/44.1 CDs processed with apple lossless) – Bitperfect – an old USB cable – 2016 Schiit Modi2 Multibit DAC- 1992 Macintosh mx132 PreAmp – 1992 Mcintosh 7150 Power Amp – 2016 ELAC unifi F5 speakers. And It’s all set up in a critical listening arrangement.

Found helpful by 2 out of 2 people
Version 3.1.1
Review by pjn.

A bit sketchy - When it is working, it is great, but about 50% of the time it seems to have trouble consistently generating an output signal. Or perhaps it's having trouble getting a signal. Anyway, I've given up using it as it's too much trouble trying to persuade it to work

Found helpful by 2 out of 2 people
Version 3.1.1
Review by linda7276

Use external (hardware) EQ - I've not encountered the concern regarding software equalization, by including two "dvx Audio" 131s 31-band 1/3 octave hardware equalizers (one per channel) right after the nuForce uDAC (Digital to Analog Converter that I've ben using with the Audirvana App) and before the external amplifier. BitPerfect sounds, well .. perfect !

Found helpful by 1 out of 1 people
Version 3.1.1
Review by Skurfer

Does the job, but no EQ - Because BitPerfect is playing your audio instead of iTunes, your equalizer settings are completely ignored. Just something to be aware of if you care. In my experience, messing with the EQ for 5 minutes makes a much bigger difference than a nice DAC or exactly matching the source and output bitrates. It works as advertised (in my limited testing), though.

Found helpful by 1 out of 4 people