Modulo 1.0: tracker music, the way it was meant to sound

Modulo does one thing: it plays tracker music. MOD, XM, S3M, IT and everything else libopenmpt can play, from the collection you already have. No editing, no streaming service, no account. Just a really good player.

Sample-accurate

Modulo is built on libopenmpt, the same engine that powers OpenMPT. Every note, every effect and every tempo change plays the way the tracker it was made in meant it to. Not an approximation that sounds about right, but the real thing.

Sounds like an Amiga

MODs were written for Paula, the Amiga’s sound chip, and they sound best with her warm, rounded filter. Modulo emulates Paula, and you choose which Amiga you are listening to: the A500 (the default, warm and round), the A1200 (brighter and more open) or no Paula at all.

On headphones Modulo narrows the stereo image of Amiga modules to 60 %, so hard-panned channels don’t stick to one ear. Pull the headphones out and you are back at full width. Why that matters is a story of its own: why Amiga modules sound different on headphones.

You see what you hear

The pattern scrolls along with the sound: notes and instruments in the colour of their instrument, effects in the colour of what they do. Tap a channel to mute it for a moment. Turn your phone and you get the full tracker view: every channel, with the samples lighting up the moment they play.

Loops done right

Lots of modules never end: they just go round. Modulo recognises the intro and the loop and shows both on the seek bar. In Auto you hear a few rounds and then a clean fade out, just right for a playlist. ∞ keeps going until you’ve had enough, Off stops after one loop.

Your own archive

Your collection already lives somewhere. Link a folder in iCloud Drive, on your phone or on your NAS through the Files app, and Modulo plays it right there. Nothing gets copied or moved.

• A library by artist, even when your files carry no artist tag: Modulo looks at your folders and file names too
• Search by title, file name and even sample name
• Playlists that loop, and that you can share as a file
• Your settings are just files in your own backup, and you can export them as one .modulo-backup file

Keeps on playing

In the background, with controls on your lock screen. Pause and skip fade in and out, so you never hear a click. A phone call pauses the music and picks it up again afterwards.

No account, no tracking

The app has no account, no tracking and no ads. Modulo only reads your music, never writes into your folders and sends nothing anywhere.

Modulo Plus

Everything above is free. Modulo Plus is a one-time purchase for the extras, no subscription:

• Themes after real machines, with their real palettes: Topaz, Breadbin, Dot Matrix, CP437, One Bit and more. The house look Modulo and its light twin stay free.
• EQ / DSP: a five-band equalizer with presets, headphone crossfeed, bass boost and pitch.
• Export: save a track as MP3, AAC, OGG or WAV, sounding exactly as it plays in Modulo.

Just want to say thanks? There is a tip jar in Settings.

When?

Now. Modulo is in the App Store, free to download. Android follows later.