Comparison

aud vs Music Flex Player

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

aud

This app combines your local music files with your Apple Music library into a single, beautifully organized interface. It offers advanced playback features and multiple ways to import your music without merging your collections.

Highlights
  • Combines local and Apple Music libraries
  • Organized by artwork, artist, album, song, playlist, genre
  • Multiple import options: Files, AirDrop, Wi-Fi, folder watch
  • Supports FLAC, ALAC, MP3, AAC, WAV, and more
  • Advanced Pro features: native resolution, gapless playback, EQ
  • Cross-platform: iPhone, iPad, Mac, Apple Watch, CarPlay
  • Offline playback
Features
Read full description

Your music. On your devices. Beautifully. aud-io is a local-first music player for the music you actually own, with the option of adding your Apple Music library alongside it. Two libraries, one beautiful app, never merged and never overwritten. EVERYONE ELSE MAKES YOU CHOOSE Local players cannot touch Apple Music. Apple Music players cannot touch your files. aud-io does both, and keeps a hard line between them, so your collection stays exactly as you built it. MEET THE SHELF Cover Flow, rebuilt. Scroll through your own artwork, from your own files, and tap to play. Browse by artist, album, song, playlist or genre when you know what you want, and use The Shelf when you do not. BRING YOUR LIBRARY IN, YOUR WAY Import from Files, share or AirDrop from anywhere, watch a folder, open a ZIP, or send your library straight from your Mac over local Wi-Fi. Peer to peer, device to device, no cloud in between. aud-io reads your existing metadata and artwork. FLAC, ALAC, M4A, MP3, AAC, WAV, AIFF, Opus, Ogg Vorbis and CAF. BUILT FOR PEOPLE WHO LISTEN CAREFULLY The free player handles your whole library, in every format, at up to 256 kbps. Pro removes the ceiling: every file at its native resolution, bit-perfect to your DAC, with automatic source rate matching, true gapless, crossfade, a 10-band EQ and EBU R128 loudness normalisation. EVERYWHERE YOU ACTUALLY LISTEN iPhone and iPad, with a native Mac app available separately. Apple Watch as a remote. CarPlay for your library and playlists on the road. AirPlay to your speakers. Home screen widgets for Now Playing, Recently Added and The Shelf. Use aud-io on iPhone as a remote for the Mac from anywhere in the house. BRING IN A WHOLE COLLECTION Import CDs. Connect a NAS. Point aud-io at the library you already have, wherever it lives, without running server software. DISCOVER MORE IN THE MUSIC YOU ALREADY HAVE Find deep cuts. Surface recently added music. Group by genre. Build mixes from the files on your device, generated on your device. OPTIONAL, AND ONLY IF YOU WANT IT Add your own Google Gemini key and aud-io can curate mixes, suggest radio-style listening and enrich music details. The key lives in your device Keychain. Your audio is never uploaded. Without a key, it is simply off. Apple Music, if you connect it, uses your own subscription through Apple's system permission. NO ACCOUNT. NO SUBSCRIPTION. The free player is a capable local music player. One Pro purchase unlocks advanced listening. There is no recurring fee, and there never will be. Pro on iPhone and iPad is a separate purchase from Pro on Mac. Works fully offline. No aud-io server. No third-party analytics or advertising SDKs. Made in Sydney by DIGITAL x DESIGN, for people who still care about their music library.

About

Music Flex Player

Features
Read full description

Music Flex is a music player for people who own their music, and want an EASY way to put it on their iPhone. Organize your music files as you like. Your files stay exactly where you put them, in the folders you chose, and they play whether or not you have a signal. Everything lives on your device. Files view shows your organized music in the app. Organizing by folders gives you the flexibility to create your music catalog in any way you want. Of course, there are the usual Artists, Albums and Playlists views as well. Getting music on is the easy part Open Wi-Fi Connect and Music Flex shows you a web address. Open it in a browser on any computer and drag your music straight in — whole folders at a time. From that same web page, you can browse, rename, move, download, and even play your library through the browser over local network. Alternatively, you can add files through the Files app, or with a cable through Finder. Put music into the Music Flex folder and the app automatically recognizes the additions. A real player Play, shuffle and repeat, create unlimited playlists, lock-screen and headphone controls, and background playback are all here. Everything you'd expect from a music player — geared toward the person who wants to control their own music library. Plays MP3, M4A, FLAC, AAC, WAV and AIFF. No tracking. No analytics. No account. Free to try with 25 songs. One optional in-app purchase unlocks your whole library — buy once, no subscription.

Screenshots

aud4 screens
Music Flex Player4 screens

Verdict

The call

The clearest difference is device support: aud at 3 against Music Flex Player's 1. Music Flex Player's advantage is iOS requirement (18.0 vs 26.5). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. aud sells 1 one-off in-app purchase and Music Flex Player sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
aud versus Music Flex Player: the parameters behind the verdict, then further details
ParameteraudMusic Flex Player
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS26.518.0 — better
Further details — not scored
Size129 MB5 MB
Age rating4+4+
DeveloperSanjiv SathiahTom KRUK

In-app purchases

1 purchases

aud

One-time1
  • aud-io Pro$14.99
1 purchases

Music Flex Player

One-time1
  • Unlimited Library$8.99

Questions

Is aud free?
aud is free to download, with in-app purchases available.
Is Music Flex Player free?
Music Flex Player is free to download, with in-app purchases available.
Do aud or Music Flex Player have ads?
Neither aud nor Music Flex Player shows ads.

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