Lambda Industries
Lambda Photo
Grade the photo. Keep the light.
Lambda Photo is a professional color-grading editor for iPhone and iPad. Open JPEG, HEIC, or RAW, work with a live preview, and export HDR HEIC that looks right on an HDR display and still holds up on SDR. Editing stays on your device.
Light
Exposure that keeps iPhone HDR.
Lift exposure without crushing highlights into a film-style shoulder. Subject Exposure and Relight work after the shot. HDR stays live as you scrub.
Finish
Subject, sky, and background — separately.
Grade people, pets, and objects as the subject. Sky and background are independent, so a sky grade does not wash the wall behind someone. Linear, radial, and brush masks when you want to paint.
Color
HSL, curves, film, and your LUT.
Color tools built for skin. Import a .cube LUT or .dcp profile. Looks, film, and presets when you want a starting point — not a filter stack that owns the picture.
On device
Nothing leaves the phone to grade.
iPhone, iPad · iOS 18 or later. Edit from Photos or the share sheet. Batch export when you have a set. Optional ads after save; subscribe to remove them. Apple bills the plan — we never see your card.
Questions
What is Lambda Photo?
Lambda Photo is a professional color-grading editor for iPhone and iPad. Open JPEG, HEIC, or RAW, work with a live preview, and export HDR HEIC that looks right on an HDR display and still holds up on SDR. Editing stays on your device.
Does Lambda Photo upload my photos?
No. Edits are processed on your device. Lambda Industries does not receive your photos.
Is Lambda Photo free?
Yes. You can edit without paying. An optional auto-renewing monthly subscription through Apple removes ads after you save. In-App Purchases; price varies by region.
Which formats can I open?
JPEG, HEIC, RAW, PNG, and JPEG XL. Export JPEG, HEIC (including HDR gain-map HEIC), PNG, or JPEG XL.
Privacy: Lambda Photo privacy policy. Support: lambda industries support.