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Apple Log is a flat, low-contrast video format that iPhone 15 Pro and later can record. It captures the maximum dynamic range your camera sensor can deliver, but it looks washed out straight off the camera. A LUT (Look-Up Table) is a color-grading file that turns flat Apple Log into the look you want — natural Rec.709, cinematic teal-orange, vintage film, etc. Lutter is built specifically for this workflow.

Lutter requires iOS 17 or later and works on any iPhone running iOS 17. To shoot in Apple Log, you need iPhone 15 Pro / 15 Pro Max or newer. Older iPhones can still use Lutter to color-grade Rec.709 video.

No. Lutter processes every video entirely on your device. Your footage never leaves your iPhone unless you export it yourself. Read the full privacy policy for details.

Tap LUTs → Import in the editor and pick your .cube file from Files (iCloud Drive, Dropbox, local). Lutter supports standard 17³, 33³, and 65³ cube grids. Imported LUTs work on the Free tier — no Pro required.

Pro ($24.99 one-time) unlocks all professional features: every LUT, multi-LUT chain, Color Wheels, Tone Curve, Film Grain, Skin Tone Fix, Pro Stabilization, Auto-Adjust, Cinema Looks, Pro Scopes, and .cube export. Lifetime, no subscription.

Lutter Pass ($1.99 / month) is a separate content subscription that delivers a new city LUT pack every month. The first month is free as an introductory offer. You can subscribe to Pass without buying Pro, and vice versa — they're independent.

Open Settings → Apple ID → Subscriptions on your iPhone, find Lutter Pass, and tap Cancel. Cancellation takes effect at the end of the current billing period.

All purchases are processed by Apple. Visit reportaproblem.apple.com, sign in with your Apple ID, find the Lutter purchase, and request a refund. We can't issue refunds directly, but we're happy to help diagnose anything that went wrong — email us first.

Please email support@lutter.app with: (1) iPhone model and iOS version, (2) Lutter version (Settings → About), (3) what you were doing when the bug happened, and (4) ideally, a diagnostic report sent via Settings → Send Diagnostics right after the issue. Bug reports with diagnostics get fixed fastest.

Tap Settings → Restore Purchases in the app. Make sure you're signed into the same Apple ID you used to buy Pro. If that doesn't work, email us — Apple sometimes takes a few minutes to propagate purchases.

iPhone displays use Display P3 wide gamut and HDR-aware tone mapping; many computers and social platforms use sRGB or Rec.709 with different gamma. Lutter exports an SDR Rec.709 H.265 file by design, which is the safest format for sharing. Some looks read as more saturated on iPhone than on other displays — that's the gamut difference, not the export. We're tracking explicit social-export presets for a future update.

Yes. Lutter is sold under a personal non-transferable license, but the videos you grade with it are yours and you can use them commercially. Some bundled LUTs originate from third-party sources licensed under Creative Commons CC0; you can redistribute the resulting graded video freely. See the Terms of Use for details.