BTR AMP
foobar2000’s mobile app brings the legendary desktop player’s virtues to iPhone: free, broad format support (FLAC, WavPack, Musepack, Opus), gapless playback, ReplayGain, and SMB/FTP/UPnP streaming. BTR AMP covers that same ground and adds what foobar2000’s listing doesn’t: CarPlay, custom tabs, smart playlists, custom tags, and Siri.
If you ran foobar2000 on the desktop for years, both apps will feel philosophically right — files first, no lock-in. The difference is how far each goes as a phone app.
At a glance
| foobar2000 (mobile) | BTR AMP | |
|---|---|---|
| Price (as of July 2026) | Free | Free · Pro $3.99/mo or $59.99 lifetime |
| Formats | MP3, MP4/AAC, Vorbis, Opus, FLAC, WavPack, WAV, AIFF, Musepack | 15 formats incl. FLAC, ALAC, DSD, APE, TTA, WV + M3U |
| Gapless | ✅ | ✅ Plus crossfade & forced-gap |
| ReplayGain | ✅ | ✅ Plus iTunes Sound Check |
| Network sources | UPnP, FTP, SMB | SMB, WebDAV, Google Drive, OneDrive, iCloud, AutoSync |
| Cloud drives | ❌ Not in listing | ✅ Google Drive, OneDrive built in |
| Custom navigation | Skins (visual themes) | ✅ Custom tabs + per-section layouts |
| Smart playlists / custom tags | ❌ Not in listing | ✅ Both |
| Metadata editing | ✅ | ✅ ID3, MP4/iTunes, APE, Vorbis |
| Equalizer / DSP | ✅ EQ + AU effects | ✅ 10-band + 20+ presets |
| CarPlay | ❌ Not in listing | ✅ With your custom tabs |
| Siri | ❌ Not in listing | ✅ |
Choose foobar2000 if…
- You want a genuinely free player with serious format support and zero purchases.
- Your workflow is server-centric — UPnP/FTP browsing straight from the app.
- You like its utilitarian, desktop-rooted interface, or you’re matching a desktop foobar2000 setup (ReplayGain tags carry straight over).
Choose BTR AMP if…
- You drive: foobar2000’s listing includes no CarPlay; BTR AMP puts your own custom tabs on the car screen.
- Your library needs structure, not just playback: custom tabs, rules-based smart playlists, and custom tags keep 50,000+ songs navigable; foobar2000 mobile gives you folders, playlists, and skins.
- Your files live in Google Drive or OneDrive — built-in connections with folder-preserving downloads, plus Wi-Fi/WebDAV transfer for the big initial move.
- You listen to podcasts and audiobooks too — dedicated types with an In Progress view, sleep timer, and variable speed.
The honest version
foobar2000 mobile is a gift to power users and costs nothing — as a bit-perfect pocket jukebox for a well-ordered folder tree, it’s hard to argue with. It just stops short of being a full iOS citizen: no CarPlay or Siri in its listing, and organization tops out at folders and playlists. BTR AMP’s free tier is a fair head-to-head trial; Pro adds the organizational layer. (Full feature list.)
FAQ
Is foobar2000 for iPhone really free? Yes — free with no in-app purchases listed as of July 2026.
Both support ReplayGain? Yes. BTR AMP also reads iTunes Sound Check and offers per-track manual gain. (Volume normalization guide.)
Which plays more formats? They overlap heavily (FLAC, WavPack, Musepack, Opus on both). BTR AMP adds ALAC, APE, and TTA; per-track codec details are shown either way.
foobar2000 facts from its App Store listing as of July 2026. BTR AMP facts reflect the current App Store version.