Flacbox: Hi-Res Music Player

Flacbox: Hi-Res Music Player

Equalizer FX, Lossless Audio

8.4K ratings
583 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • May 6, 2016
  • July 22, 2026

Features

Flacbox: Hi-Res Music Player screenshot #1 for iPhone
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Flacbox: Hi-Res Music Player screenshot #10 for iPhone
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About

This app plays almost any audio file with lossless quality, offering advanced equalizer and bass boosting. Stream or download music from cloud services and NAS, manage your library with a built-in file manager, and customize playback with extensive options.

Lossless audio playback
Cloud and NAS streaming
Built-in equalizer with presets
Advanced file manager
Customizable playlists
Offline playback
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What users say

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What's New in Flacbox

7.6

July 22, 2026

Hi everyone! This is our biggest update yet, built around a brand-new BASS audio engine for lossless and high-resolution listening. NEW BASS AUDIO ENGINE A professional playback core you can select as an alternative to the existing engine. It unlocks a full chain of real-time audio effects, DSP processing, and live visualization, and it adds playback of classic tracker and MOD music (MOD, XM, IT, S3M, MTM, UMX, MO3). It plays your existing library with high-quality resampling and precise pitch and tempo control. AUTOMATIC VOLUME LEVELING Loudness-based normalization keeps tracks from different albums at a consistent volume. Local files are pre-scanned so playback opens already leveled. NEW AUDIO EFFECTS SUITE Stack and tune studio-style processors in real time: reverb, delay, multi-tap echo, chorus, flanger, phaser, auto-wah, distortion, compressor, stereo rotation and crossfeed for a more natural headphone soundstage. Each effect has its own screen, presets and an instant on/off toggle. NEW DSP PROCESSOR Build your own signal chain from 14 real-time filters: gain, low-pass, high-pass, band-pass and notch filters, peaking, low-shelf and high-shelf EQ, soft-clip saturation, bit crusher, tremolo, delay, ring modulator and stereo width. Each has presets and an instant on/off toggle. REAL-TIME MUSIC VISUALIZER Full-screen animated visuals that react live to your music, with a large library of presets to choose from or let cycle. Available across the playback engines on all your devices, with a screen-sleep preventer so the show keeps going uninterrupted. REFRESHED DESIGN Redesigned audio effects and equalizer screens with modern sliders, glass-style visuals and a simplified presets mode, plus clearer organization of engines, effects and DSP. CARPLAY IMPROVEMENTS DSP settings on CarPlay, fixed artwork and Now settings and more accurate lock-screen, watchand car controls. Plus a more reliable streaming foundation, better file-type handling, broader localization, and many stability and performance fixes. Thank you for using Flacbox. Your music now sounds great and looks great, with a professional-grade engine, a full suite of effects and DSP filters, and a live visualizer to match. We can't wait for you to hear and see it.

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Subscription plans

Flacbox Premium Yearly

unlimited music player, ad-free

$19.991 Year
7 Days trial
How to cancel Flacbox subscription ⁉️
3

In-App Purchases

$69.99

Flacbox Premium Lifetime

unlimited music player, ad-free

User reviews

Overly complicated; I wished I could have a refund

The file transfer process was hellish. iTunes would not connect to the app via my PC and in order to convert my FLAC files, I had to used a third party file converter to ALAC. It never worked and I ended up using Foobar2000 for easy FLAC to FLAC download via TuneFUSION

Some things about this app that should be noted.

I find this app very useful, its interface is hard to navigate at first but I’ve gotten better as of late.

The thing that bothers me is when I’d like to skip songs, it starts to play the next song, but the player itself starts to “grey out” and the controls are not usable anymore.

Another thing is the shuffle is kind of broken when I skip and it restarts and the same shuffled songs play again. I’d have to open the app and click shuffle to create a new shuffled session.

The helpful customization to build my library is what I like and it gives me the freedom to place my album covers and name properly and with cleanliness.

If the things I mentioned can be fixed I’d love to continue using this app. Thank you for creating a wonderful app!
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I want to like it

There is a lot to potentially like about it, but they use aggressive and broken ads to pressure you into buying. I was trying to download tracks via cloud and ad after ad when going back and forth to check on it. Then one pops up and you can’t get rid of it. I had to force close out an start all over. Deleted this
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$70 for lifetime? Crazy

This is like highway robbery. It so expensive that it borderlines a moral obligation not to pay this; solely because of how evil they must be to charge $70! You might be paying Satan himself, but I think I saw a review he left saying this is too mean even for hell…

recent update no longer has free premium option

used to be able to watch an ad for free premium.

now there's only a paid option

Developer apps

User experience

🐞

Reported Bugs

4 issues

Songs disappearing from library

Bug

Bluetooth playback issues

Bug

Inability to delete songs from playlists

Bug

Inconsistent behavior with cloud storage integrations

Bug

Requested Features

5 requests

Gapless playback

Feature

Lyrics support

Feature

Playlist management improvements

Feature

Siri/voice control integration

Feature

Crossfade between tracks

Feature

FAQ

What kind of audio files can Flacbox play?

Flacbox supports a vast array of audio formats, including popular ones like MP3, FLAC, AAC, WAV, and WMA, as well as more niche formats. It also handles various video container formats for audio extraction. This extensive compatibility ensures you can play almost any audio file on your device.

How can I manage my music library with Flacbox?

The app offers a comprehensive file manager for organizing your music. You can sync your library automatically from cloud services or NAS storage, group files by categories like albums and artists, create custom playlists, and even edit ID3 tags. This makes managing even large music collections straightforward.

Does Flacbox offer audio customization options?

Yes, Flacbox features a powerful built-in audio equalizer with numerous presets for different genres, manual controls, and a preamplifier for boosting volume. You can also adjust playback speed, pitch, and set sleep timers, offering a highly personalized listening experience.

Can I listen to music offline with Flacbox?

Absolutely. You can stream music from your cloud storage or NAS and then download your favorite songs for offline playback. This allows you to enjoy your music library without an internet connection, making it ideal for travel or areas with poor connectivity.

Is Flacbox free to use?

The app is free to download and use, offering many features without cost. However, it does include in-app purchases for additional functionalities or to remove ads, aligning with a freemium monetization model.