SwiftConvert

Convert video and audio right on your iPhone or iPad. SwiftConvert turns files into the formats your apps and devices accept and does the whole job on-device. No server, no account, no tracking, no analytics.

CONVERT, LISTEN, LIBRARY
Tabs on iPhone, a sidebar on iPad. In Convert, a bar along the bottom holds your preset and a box to describe what you need. Library gathers converted files, notes and batch reports.

SYNC BETWEEN YOUR DEVICES
Pair with your Mac, Apple TV or another iPhone or iPad once, by scanning a QR code or typing a 6-digit code. While SwiftConvert is open on both, presets, batch reports, notes and your list of converted files stay in step over your local network. A file converted on another device shows up in Library; tap Download to bring a copy over. Deleting a converted file removes it on your paired devices too. Queue jobs and source files are never shared.

SHARE TO SWIFTCONVERT
Pick SwiftConvert in the share sheet in Photos, Files or another app. The files wait in the queue.

LISTEN & TAKE NOTES
SwiftConvert captures what your iPhone or iPad is playing and transcribes it on-device. Pick what to capture and a limit of 15, 30, 60 or 120 minutes. Notes save to Library, where your 20 most recent wait to be read or shared as timestamped Markdown. A language's speech model may need a one-time download.

VISUAL NOTES
On devices with Apple Intelligence, optionally turn a transcript into key ideas, a timeline, cards and recall questions, generated on your device. They save with the note and come along when you share it.

APPLE WATCH
The Apple Watch app is a remote for your iPhone: start or stop a Listen & Take Notes session and see the last five lines, or start, stop and retry a batch. Your iPhone does the work and must be reachable. Works with iPhone only, not iPad.

THE CASSETTE
Your queue is a cassette: tap it to add files, start, stop or retry. Tape winds from reel to reel as the batch converts. The dragon pops in to gulp new files and cheers when it's done.

TALK TO dragON
Switch to dragON mode and say what you need: "just the audio", "trim Road Trip to the first minute". It shows a plan with estimated sizes, asks before starting, and reports back. Type, or tap the mic and speak; speech is recognized on your device. With Apple Intelligence it understands free-form requests, otherwise built-in phrases. Both modes share one queue.

PLAY THE MKVs THAT WOULDN'T PLAY
iPhone and iPad can't open MKV files. SwiftConvert reads them itself and rebuilds them as MP4. H.264 and HEVC video is copied across untouched, while AC-3 and E-AC-3 soundtracks become AAC with 5.1 channels intact. Keep the audio and subtitle track you pick, or every one as alternates. Chapter marks come across too.

TRIM, CROP AND ROTATE
Set a start and end point, straighten a sideways clip, or crop to 16:9, 9:16, square, 4:3 or 21:9. Smart Crop suggests where to center. Trimming and rotating are lossless; only cropping re-encodes.

FORMATS AND PRESETS
Output MP4, MOV or M4V with H.264 or HEVC video and AAC audio, or pull the audio out as M4A in AAC or lossless ALAC. Four presets are built in: iPhone, Web, Archive and Podcast. Save any combination as your own.

ENHANCE WHILE YOU CONVERT
Super Resolution, Motion Smoothing, Motion Blur, Noise Reduction and frame interpolation run on your device's media hardware, one per conversion. The app shows which ones your device supports.

DESCRIBE WHAT YOU NEED
Type "archive at the best quality" and Smart Convert picks the container, codecs and quality and offers to save it as a preset. Needs Apple Intelligence.

SHORTCUTS AND BATCHES
Convert Files runs a preset without opening the app; Add Files to SwiftConvert Queue lines them up to review first. Queue any number of files, stop at any point, and retry failures, even from the notification.

PRIVATE BY DEFAULT
Every conversion happens on your device, and sync stays on your local network between devices you pair. Your videos stay yours.