M4Bindr – Convert messy MP3 folders into clean M4B audiobooks on iPhone

Summary: M4Bindr is an iOS app that merges multiple MP3 files into a single M4B audiobook with editable metadata, enabling direct export to Apple Books or other players without a computer.

What it does

It combines multiple audio files into one M4B audiobook, allows editing of titles, authors, and cover art, and exports the finished book to compatible apps on the iPhone.

Who it's for

Users who want to create or fix audiobooks on iPhone without using a computer, such as those managing LibriVox or other audiobook collections.

Why it matters

It eliminates the need for a laptop by enabling audiobook creation and metadata editing directly on a mobile device.