Modulo · Tracker Music Player
Play MOD, XM, S3M, IT and more
Free · In‑App Purchases
New: seven themes, twenty in all, and Modulo on the Mac too. Tracker music with real loops, the Amiga sound, the pattern scrolling along and 51 visualizers.
Finally a proper player for tracker music. Modulo plays the MOD, XM, S3M and IT files of the Amiga, the demoscene, cracktros and game soundtracks, over 60 formats in all. It plays them the way they were meant to sound, and it shows you what you hear.
PLAYS IT RIGHT
• Loops and endings done properly: Auto plays a looping song a few rounds and fades out, ∞ keeps going, Off stops after one loop.
• No clicks, no silences and no sudden volume jumps between tracks.
• The Amiga sound: Paula emulation (A500 and A1200), with stereo that fits the original hardware.
SEE WHAT YOU HEAR
• The pattern view scrolls along in sync, 4 to 64 channels, like the tracker it was made in.
• Sample and instrument names, the song message and the details of every module.
• 51 visualizers that move with your music, in the pattern window or full screen. Four of them are free.
JUST A MUSIC PLAYER
• Keeps playing in the background and with your screen locked.
• Control it with your AirPods, the lock screen, Control Center or the buttons on your steering wheel.
YOUR ARCHIVE, WHERE IT IS
• Link a folder in iCloud Drive, on your PC, Mac or NAS, or on a USB drive. Modulo reads your modules where they are: nothing is copied.
• Got a zip from a friend? Open it in Modulo and its modules are in your library.
• Artists from your folders and the modules themselves, search, favorites and playlists.
PRIVATE BY DESIGN
No account, no ads, no tracking. Nothing about you or your music leaves your iPhone.
MODULO PLUS
Modulo is free: every format, the library and all sound settings. Modulo Plus is a one-time purchase, no subscription, that adds extras on top:
• A five-band EQ with presets, headphone crossfeed and pitch
• Eighteen themes for the whole app, after classic computers, consoles and trackers
• An app icon for every theme
• Export a track as MP3, AAC, OGG or WAV, with your sound settings
• All the visualizers, not just the four free ones
• Everything still to come, at no extra cost
Buy it once, for your iPhone and your Mac.
Made by one person, as a hobby, for everyone who grew up with this music.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Featured: Modulo is now on the Mac too, as a real Mac app with a large, a medium and a mini window. Buy Modulo Plus once and you have it on your iPhone and your Mac.
New in this version:
- Seven new themes, twenty in all: Bevel Blue, Segment, Page 100, Rhythm Box, Green Desk, Hi-Fi and Vector, each with its own app icon.
Improvements and bug fixes:
- "Later. Back to the tracker" on a Plus visualizer sets the visualizer back to the first free one, so it no longer opens on the locked one again.
- Show demo songs now says who made the songs.
Questions or feedback?
Mail jeffreyroosendaal@gmail.com
The developer, Jeffrey Roosendaal, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jeffrey Roosendaal
- Size
- 12.8 MB
- Category
- Music
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Dutch
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Large tip $8.99
- Medium tip $3.99
- Small tip $1.99
- Modulo Plus $4.99
- Copyright
- © 2026 Jeffrey Roosendaal