File converter & compressor
Convert or shrink anything.
Upload nothing.
Two tools in one app: convert images, video, audio, PDFs, GIFs and Live Photos between formats, or compress them down to a size you choose, all on your iPhone or iPad, by your iPhone or iPad. Your files never leave your device, because there's nowhere for them to go.
What it does
The online converter and compressor you've been pasting private files into, running on your phone instead.
Free web converters and "reduce file size" sites are free because your file is the product. Recast does the same jobs with Apple's own media frameworks, offline, and your files never go anywhere.
Images
Between JPEG, PNG, HEIC and more. Orientation is written into the pixels for formats that can't store a rotation tag, so nothing arrives sideways.
Video & audio
Hardware-accelerated re-encoding, and a target size if you need one. Long files are processed a piece at a time so a big video doesn't exhaust memory.
Live Photos
A dedicated picker that opens straight to your Live Photos. Export the still, the video, or both. That is the part everything else gets wrong.
PDFs & GIFs
Multi-page PDFs handled page by page, and GIFs converted to small MP4s that still autoplay everywhere you'd send them.
Compress to a size
On the Compress tab, pick a target: 25 MB for most email, 20 MB for Discord, 16 MB for a WhatsApp video, or any size you type. Recast then re-encodes a photo, video, PDF, GIF or audio file to hit it.
Zip anything
Any other file, or several picked at once, can be bundled into a single smaller ZIP, one tidy archive to send instead of a pile of attachments.
Honest about results
If full resolution can't reach your target, Recast lowers the resolution to get there and tells you it did. If a file is already small enough, it leaves it alone. If a conversion makes a file bigger, it says so.
Nothing piling up
Your recent results stay in the app, on this device only, ready to share again, and you can clear them any time. Working copies are cleared automatically. Cancel at any point and your original is untouched.
The promise
Free to start. Pay once for Pro.
No account and no subscription. Your files are never uploaded, because there is nowhere for them to go. You get five files on each tool to start, then a free one every day, and you can watch adverts to earn more. Adverts are never required, and Recast never asks to track you. Recast Pro is a single £4.99 payment for unlimited files, whole batches at once, images into one PDF, Shortcuts and no adverts.