Sound Stitch: Audio Merger

Stitch audio clips into one file, in the right order, with chapters added automatically. Audiobooks, courses, lectures, meeting recordings, podcast segments — turn dozens of parts into one complete file in a few taps. IN THE RIGHT ORDER • Browse a folder and add clips in the order you tap them, or pick several from Files at once • Sort by file name with one tap so 01, 02 … 10 line up correctly • Drag to reorder, swipe to remove, and preview any clip • See the file count and total length at a glance AUTOMATIC CHAPTERS • Each source file becomes a chapter named after the file • Jump to any part in Apple Books, VLC and other players • Preview the result by chapter right in the app BUILT FOR LONG AUDIO • Keeps stitching in the background and notifies you when it's done • Cancel anytime • Output is named after your first file and numbered automatically — earlier results are never overwritten WORKS WITH YOUR FILES • iCloud Drive, On My iPhone, and third-party providers like Documents by Readdle • Drag audio in from another app on iPad and iPhone Duo • Supports MP3, M4A, AAC, WAV, AIFF, FLAC, CAF and more; exports M4A DESIGNED FOR BIG SCREENS AND IPHONE DUO • Unfolded, the queue and the result sit side by side • Frequent actions live at the bottom of the vertical toolbar, right under your thumb Everything happens on your device. Your audio is never uploaded.