Professional M4B
Audiobook Creator
Skip the desktop tools. The only app you need to import, merge, and build professional M4B audiobooks directly on your iPhone.
Powerful Features
Everything you need.
Nothing you don't.
Built for speed, privacy, and simplicity.
100% On-Device
No uploads, ever. All audio processing happens locally on your iPhone offline.
Private by Design
Your library stays private. Nothing goes online, nothing is tracked.
Pause & Resume
Need a break? Pause the build anytime and resume exactly where you left off.
Merge & Export
Merge multiple files into a single audiobook. Seamlessly export to Files, iCloud, or your favorite player.
Simple Workflow
From files to audiobook
in three steps.
Import Audio
Select your DRM-free audio files directly from your files or iCloud.
Add Metadata
Customize the title, author, and cover art. So your audiobook looks professional in any player.
Build & Export
M4Bindr processes your files offline and exports a ready-to-play M4B audiobook.
Fair pricing, forever.
M4Bindr is free to try with your own files. Process up to 30 minutes of audio on us to see how it works.
Unlock unlimited audiobook duration & exports.