Flacbox: Hi-Res Music Player 4+

Equalizer FX, Lossless Audio

Artem Meleshko

    • 4.6 • 4.3K Ratings
    • Free
    • Offers In-App Purchases



Flacbox is a hi-res music player with an audio equalizer and bass booster. With this application, you can open almost any audio file on your iPhone/iPad and listen to the music in a lossless format.

You can move all your music to the personal NAS storage or cloud service to free up space on your device. Then you can connect to the cloud service and listen to your music directly or download your favorite songs for offline playback.

You can sync your music library automatically and all audio files will be grouped by categories. You can also create music playlists and change songs order.

This application has a professional audio equalizer with different presets for the most popular music genres. But you can also select manual equalizer settings and change preamplifier gain if you need to make your music louder.

You can work with your music collection as files using a built-in file manager. All basic operations are supported.

A smart search engine will help you to find favorite albums and songs in your music library.

Main application features:

- Audio formats: FLAC, ALAC, OPUS, DSF, MKA, MP3, AAC, OGG, M4A, WAV, AIFF, M4V, WMA and others.
- Cloud services: Google Drive, Dropbox, OneDrive, Box, MEGA, TeraCLOUD, Yandex.Disk, WD MyCloud Home, MediaFire, MyDrive, pCloud, HiDrive.
- Supported network protocols: WebDAV, SMB, DLNA.
- Audio equalizer.
- AirPlay, SONOS via AirPlay2.
- File transfer via Wi-Fi.
- ID3 Tags Editor.
- External Flash Cards.
- Playback speed control.
- Pitch correction.
- File manager.
- Audio playlists.
- Recently played files.
- Audio bookmarks.
- Sleep timer.
- Shuffle mode.
- Album covers.
- Advanced search.
- Background mode.

What’s New

Version 4.2

Hello everyone in this version we fixed major issues.
We also added new features that you asked for in your feedback.

Fixed Chromecast playback.
Fixed songs import.
Fixed audio tags editor navigation.
Added arabic numbers support in search.
Fixed songs/albums switcher.
Fixed albums loading speed in music library.
Fixed synchronization issues.
Fixed metadata loader.

Thanks to everyone who help us make this app better!

Ratings and Reviews

4.6 out of 5
4.3K Ratings

4.3K Ratings

HawaiiMaui ,

EQ works on iPad, SMB2 Win10 sharing

I can connect to file shares on my Win10 PC. This is amazing, since I WFH I can use my iPad to play MP3's or FLAC and not need to download files and use up my precious (paltry) 32GB of storage. [Any other app that claims SMB but hasn't been updated since 2018 won't let you authenticate with Windows. MS disabled SMB1 and the devs needed to update to SMB2 or SMB3; this app has kept up to date.]

This app also has an EQ, this basically lets me use any halfway decent earphones and make them sound much better. Buying this app with EQ was much cheaper than buying high end wireless earphones. I've used EQ's for years with speakers to neutralize the room acoustics and love them with headphones too. The EQ sliders were missing on iPad but a few emails with the dev and they've got it working in the Dec 2020 build.

The SMB (cloud) playback also seems less buggy, or my Wi-Fi is behaving. The app was pretty unforgiving of bad network connections, but this one hasn't crashed for hours. (Their MP3 EQ app has 3x retry options in the settings but the FLAC one doesn't.)

DeadPhish1026 ,

Two issues

I have been using this app for my music projects recently, and I love it and think it is much superior to other similar programs, but there are two pretty big issues that are getting me. One: I have a lot of songs that "segue", or bleed into each other and are directly connected, and this app takes a few seconds to apparently "load" the next song. On Apple Music and other programs, seamless segues are allowed, but on Flacbox, there is a pause, which screws up the listening experience. Two: If I am inactive on the app for a day or so, my entire music library erases, and I have to reupload everything from my cloud drive. As soon as it is there, it reattaches the audio tags and assigns songs to their artists and albums, but it takes at least 15 minutes. Also, when I try to use the app on my phone, under the same account, I have to upload my entire music library, again, and wait for all the albums to be assigned. I haven't figured out a way to stop this so far. Both issues are really annoying, but otherwise the app works well. Please pay attention to this review, as I have reviewed the app multiple times stating the same issues, and I can't find a way to email/contact the creator. Thanks

Ferrari550 ,

Great app

I have used EverMusic app for a day or two and had problems. Flacbox is the better than any other music app out there. If have any problems with it then I'll write a review, supporting your improvements on this app by give you supportive advice. Thanks great app, totally cool and quick when download is ready to play.

There is one thing that needs to be fixed. When i listen to an hour long play list it seems that the buffering slows down and if there is any way you can make loud faster like it did before especially for the one hour long play list. When playing, it stalls out and pauses the play list and would like to see improvement on that. Other than that, i think this is still the best music player app out there:)

Thank you

App Privacy

The developer, Artem Meleshko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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