iPhone
Edit once. Post everywhere.
Luma is a photo editor for content creators. Make one master edit, and Luma suggests a correctly framed crop for every platform you post to — Instagram Feed, Instagram Story, Threads, X, RedNote and Mastodon — with faces and subjects kept in frame automatically.
One edit, every crop
Saliency auto-crop
Luma finds the faces and the subject in your photo and suggests a crop for each platform's aspect ratio — nudge any variant by hand in the review grid.
Filters, adjustments & frames
A curated set of colour looks, six adjustment sliders, and fill or frame placement when a crop doesn't fit a photo's shape.
Captions & watermark
Anchor-zone text re-lays itself out per variant, and an @handle watermark keeps your work credited to you.
Export All
One tap exports every platform variant as a correctly sized JPEG, ready to post — EXIF and GPS data stripped by default.
Auto-saved projects
Every edit is saved as you go and picked up again from the Home screen — nothing is lost if you close the app mid-edit.
No accounts
No sign-in required. Your photos and edits stay on your device.