ToBeSorted2 app icon +
TestFlight Version

ToBeSorted2

Built for DJs. Built by DJs.

What ToBeSorted2 does

Plug in the stick rekordbox exported to, and ToBeSorted2 reads the library straight off it — Device Library, OneLibrary, every folder and playlist — right there on your phone. Just the track list, playlist structure, and metadata — no artwork, nothing copied over. Preview a track and it plays straight off the stick. The music stays on the drive where it belongs.

iPhone, iPad, MacSame drive, same library, every screen.
Search by BPM & keyCamelot or Western — search either, see both.
Verify before you goCatch a missing file before it catches you on the night.
Remembered via iCloudPlug in once — the track list and playlists follow you to your other devices. Never the audio.
Your remembered USB drives, on Mac
Your remembered USB drives, on iPhone
Your remembered USB drives, on iPad
A verified library, on Mac
A verified library, on iPhone
A verified library, on iPad
Searching a library, on Mac
Searching a library, on iPhone
Searching a library, on iPad
For this first version, browsing and searching use a file-system metaphor — folders, playlists, drives. It's a familiar place to start, and it'll evolve as the app grows.

Add your first USB

iOS

  1. 01
    Connect the drivePlug your USB into your iPhone or iPad.
  2. 02
    Tap the drive iconTop-left of the volumes list.
  3. 03
    Choose the USBFind it under Locations in the picker, then tap Open — iOS remembers it after this.
  4. 04
    Browse or searchTap in for the libraries, or hit search.

macOS

  1. 01
    Connect the drivePlug your USB into your Mac.
  2. 02
    Grant accessA system panel appears automatically — click Grant Access.
  3. 03
    There's no step 3.macOS already remembered the drive — no repeat prompts.
  4. 04
    Browse or searchSelect it in the sidebar, or hit search.
Adding a USB, on Mac
Adding a USB, on iPhone
Adding a USB, on iPad
On Mac, eject with ToBeSorted2's eject button before unplugging. On iPhone and iPad, you can just pull the drive out.

“This accessory requires too much power”

Some combinations of stick and hub ask for more power than an iPhone's port will hand out. iOS turns the drive away itself, with this alert, so it never reaches ToBeSorted2 — or any other app. It is an iPhone thing: Macs and iPads have more to give and don't run into it.

iOS refusing a USB drive that draws too much power
What works: drop the hub. A plain USB-A to USB-C adapter puts the stick straight on the port, with nothing else drawing from it.

Preview a track

Hit play on any track and it starts — read off the drive as it plays, and gone again when you're done. Nothing is written to your phone. It's a preview, not a deck: enough to settle which track this actually is when the title on its own isn't ringing a bell.

Straight off the stickThe audio is read from the drive to play it, and never saved to your device. The waveform is drawn from that audio too, not an estimate.
Hot cues and memory cuesJust like your CDJs — tap a hot cue to play from there, or tap anywhere in the waveform once it's playing.
Keeps playing while you browseA small player sits at the bottom edge. Tap it for the track's details, or stop it from there.
MP3, AAC, ALAC, WAV, AIFFThe formats rekordbox exports. FLAC isn't in yet.
Previewing a track, on Mac
Previewing a track, on iPhone
Previewing a track, on iPad
The player following you as you browse, on Mac
The player following you as you browse, on iPhone
The player following you as you browse, on iPad
A track's details while it plays, on Mac
A track's details while it plays, on iPhone
A track's details while it plays, on iPad
A track that's already playing is held in memory, so it carries on even if the drive comes out mid-preview — but starting the next one needs the drive back.

What's in a name?

Before rekordbox, there was iTunes — and a habit of stuffing metadata into the Comments field on every track: female, vocals, whatever would help it surface later. The original ToBeSorted scraped one playlist folder and turned every BPM and comment keyword it found into a button. Tap a few, see what's left. It sold a handful of copies, then a day job got busier than a side project could compete with, and it quietly bit-rotted out of the App Store.

The name comes from that one folder it scraped — never the whole library, that would take all night — called, literally, "ToBeSorted": tracks still waiting to be sorted. The app just borrowed the name off the folder it was built to search.

The original ToBeSorted: a grid of BPM and keyword filter buttons The original ToBeSorted: a track's detail The original ToBeSorted: the Sets screen

ToBeSorted, circa 2013 — tap a BPM, tap a keyword, see what's left.

Release history

1.2.0 — Cue points Aug 18 2026
  • See a track's cue points — hot cues and memory cues both, in rekordbox's colours, drawn down the waveform; tap one to start the track there.
  • Cues come off the drive's own analysis files, so they match what a CDJ reads from the same USB.
  • A track's detail is now a fixed title over three pages — Metadata, Playback, Related — and names the track's format and sample rate, which you can search by too: AIFF, WAV, MP3, MP4.
  • A track that can't be played now says why — its file is missing, the drive's access has expired, or it's a format we don't play.
1.1.0 — Track preview Aug 4 2026
  • Preview any track straight off the drive — play, pause, and tap the waveform to move the playhead.
  • Waveforms drawn from the track's own audio, so you can see its shape before you cue it.
  • A small player at the bottom edge keeps the track going while you carry on browsing.
  • Plays MP3, AAC, ALAC, WAV, and AIFF.
  • Playlist tracks are numbered.
  • On iPhone and iPad in portrait, a track's detail floats over the list instead of squeezing it.
1.0.1 Jul 24 2026
  • Fixed a macOS issue where the window title bar showed the app's name instead of staying blank.
1.0.0 — First TestFlight build Jul 20 2026
  • Browse rekordbox USBs across iPhone, iPad, and Mac.
  • Search by track, artist, genre, BPM, and musical/Camelot key.
  • Verify a playlist's tracks still have audio files on the drive.
  • Libraries remembered and synced privately across your devices via iCloud.