LUT Lab vs LogBloom

A LUT (Look Up Table) is a simple file that lets you change the colors, tone, and contrast of photos/videos - like a universal color preset, compatible between different apps. LUT Lab is a handy tool that lets you visualize LUTs, use them to process any photo of your choice, and export to/from the most common LUT formats: .CUBE and HALD. It is a nifty companion tool for photographers and videographers, featuring: - Minimal and information dense interface - Full, interactive 3D cube visualizer - Before/After photo split viewer; load your own photos, export a LUT-processed version at native resolution. - Support for .CUBE (any size on input, up to 65×65×65 export) and HALD (TIFF/PNG, any rank) formats - Convert from .CUBE to HALD and from HALD to .CUBE; optionally resample .CUBE files for maximum compatibility with other apps - Supports desktop class features on iPad + Mac: multiple windows, drag & drop, keyboard shortcuts, open .CUBE files into LUT Lab straight from Finder/Files, etc. - Multiple color themes (one time in-app purchase required) - Extremely small app size: tons of functionality packed into only a couple megabytes. - Respects your privacy: no 3rd party libraries or tracking. Uses the latest iOS APIs so you only have to give minimal permissions for loading & saving files. If you have any questions, suggestions, need support, or for anything else, don't hesitate to reach out! contact@heliographe.net

LogBloom turns flat log footage into finished, cinematic color — entirely on your iPhone or iPad. Shoot Apple Log on iPhone or D-Log on a drone, drop the clip in, and get graded video back into Photos without ever opening a desktop editor. No subscription. No cloud upload. Your footage never leaves your device. GRADE WITH LUTs • Apply .cube LUTs to any video or photo • Stack multiple LUTs into a chain, each with its own intensity • Reorder, blend, undo and redo — see every change live on your actual frame • Save any combination as a reusable "Look" BUILT FOR LOG • Built-in Apple Log → Rec.709 and DJI D-Log → Rec.709 conversion, computed from the published color science — not guesswork • LogBloom always applies the log conversion before your creative look, so colors stay correct no matter the order • HDR/HLG clips are tone-mapped to SDR, and the app tells you when that happens FINE-TUNE • Post-grade adjustments: exposure, contrast, saturation, temperature, tint, and vibrance • Hold to compare against the original, or use the split-screen wipe • Built-in histogram scope • Save any frame as a graded HEIC still SMART SUGGESTIONS • LogBloom reads your clip's camera and color profile and surfaces the right conversion LUT first • Works for photos too, using EXIF camera data EXPORT THAT KEEPS YOUR METADATA • Export to Photos or Files as MOV or MP4, HEVC or H.264, up to 4K • Original creation date and GPS location are preserved on the exported clip • Size estimate before you export • Batch mode: grade up to 50 clips, or apply one grade to a whole batch at once PHOTOS TOO • The same LUT pipeline and adjustments work on still photos, with EXIF and GPS preserved YOURS, EVERYWHERE • Your LUTs and Looks sync privately across your devices via iCloud • Share a Look as a single .logbloomlook file — it carries the LUTs inside it • No account, no server, no tracking of your creative work LogBloom is the fastest way to take iPhone and drone log footage from flat to finished, right where you shot it.