Long Exposure vs LAB*

Long exposure photography, without the guesswork. An iPhone shutter physically cannot stay open for thirty seconds. So this app does what a long exposure actually is: it stacks hundreds of live frames on the GPU and blends them in linear light, the way the physics wants it done. The result is a real long exposure — and you watch it form on screen while it happens. THREE WAYS TO STACK Motion Blur — averages every frame into smooth, flowing movement. Waterfalls turn to mist. Clouds smear across the sky. Crowds become ghosts. Light Trail — keeps the brightest pixel from each frame. Headlights draw ribbons through traffic, sparklers write in the air, stars arc across the night sky. Low Light — adds frames together to gather light a single shot could never collect. The more frames land, the further noise falls away, and dark scenes come back clean instead of grainy. STOP WHEN IT LOOKS RIGHT Most long exposure tools ask you to commit to a duration up front, then leave you waiting blind. Here the exposure builds live in front of you. Watch the trails grow, watch the water go silky, and end the shot the moment it looks right. Not there yet? Pick the exposure back up and keep stacking from exactly where you left off. Nothing is thrown away until you say so. TOOLS THAT TELL YOU THE TRUTH • Live histogram that updates as the exposure builds • Zebra clipping warning marks blown highlights before you lose them • Running frame count and total exposure time, always on screen • Review the finished frame full size before anything is saved SEVEN SCENE PRESETS Waterfall, Traffic, Star Trails, Fireworks, Light Painting, Night Scene, and Empty the Street — the last one averages a busy scene until the people walking through it simply disappear, leaving the street to itself. Every preset is a starting point, not a cage. Adjust anything after loading one. MANUAL CONTROL WHEN YOU WANT IT • Lock exposure, white balance and focus so brightness and color never drift mid-stack • Manual ISO, or let the app work it out from the scene • Set exposure length, or hold the shutter open and decide by eye • 3 and 10 second self-timer for tripod work BUILT PROPERLY • 16-bit float accumulation, so nothing bands or clips partway through the stack • sRGB is linearized before blending and re-encoded afterwards — highlights stay honest instead of turning to grey mush • Saved to your photo library as HEIC with real EXIF: total exposure time, ISO, capture mode, and the exact number of frames stacked • Full resolution. No watermark. No account. • iPhone and iPad WHAT IT IS GOOD AT Silky waterfalls and coastlines. Car light trails on a night road. Star trails and the Milky Way. Fireworks caught as complete bursts instead of fragments. Writing in the air with a torch. City streets after dark, without pushing ISO until the noise eats the shot. Clearing tourists out of a landmark photo. A tripod or a steady surface will always give you the cleanest result — that is true of every long exposure ever taken, on any camera.

# LAB* — App Store Listing --- ## App Name LAB* RAW Photo Editor & Darkroom LAB* is a professional RAW photo editor for iPhone, iPad, and Apple Silicon Mac — built for photographers who care about quality, privacy, and speed, without subscriptions or paywalls. Edit RAW, ProRAW, and standard photos directly from your camera roll, SD card, USB drive, or cloud storage. Every edit happens entirely on your device. Nothing is ever uploaded, tracked, or shared. **RUNS ON ALL YOUR APPLE DEVICES** • iPhone — edit on the go • iPad — full-screen editing with touch precision • Mac with M1, M2, M3, or M4 chip — same app, same power, on your desktop **POWERFUL EDITING TOOLS** • Exposure, Brightness, Contrast, Clarity • Highlights & Shadows with split toning — push warm or cool color into your tones independently • Whites, Blacks, Saturation, Vibrance, Warmth, Tint • Bloom, Halation, Fade, Grain, Vignette, Sharpness, Noise Reduction • Master tone curve + per-channel RGB curves • HSL color grading — adjust Hue, Saturation, and Luminance for 8 individual color ranges (Red, Orange, Yellow, Green, Cyan, Blue, Purple, Magenta) **MASKING & LOCAL ADJUSTMENTS** • Radial masks — circular spotlight adjustments • Linear masks — graduated filter for skies and horizons • Luminance masks — target shadows, midtones, or highlights • Color masks — select and adjust specific colors • Subject & Background masks — AI-powered person detection • Depth masks — near/far selection using Portrait mode depth data • Stack multiple masks on one photo **CROP & GEOMETRY** • Free-form crop with all 4 corner handles • Fixed aspect ratios: 1:1, 4:3, 16:9 • Straighten with auto-zoom (no black corners ever) • Rotate 90° left or right • Vertical and horizontal keystone correction **LOOKS & COMMUNITY PRESETS** • Built-in looks: Vivid, Classic Warm, Cool Blue, B&W, Vintage Fade, Moody • Save your own custom presets • Share presets as .labpreset files via AirDrop or iMessage • Import presets from friends — tap to install instantly **WORKFLOW** • Open RAW files directly from SD cards and USB drives — no import needed • Before/after split view with draggable divider • Hold to compare original • Pinch to zoom and pan • Full undo/redo history • Batch edit — apply a preset to multiple photos at once • Export as HEIC or JPEG with quality and resize controls • Share directly via AirDrop, iMessage, Instagram, and more **100% PRIVATE** No account required. No analytics. No ads. No data collected — on any device. Everything stays on your device, always. Built with love for photographers, by a photographer. --- ## Category Primary: Photo & Video Secondary: Utilities ## Age Rating 4+ ## Pricing Free ## Privacy Policy URL https://spurious-delphinium-b23.notion.site/LAB-Privacy-Policy-3be54f36504a8096ba69e56523206c30 ## What's New (first release) Welcome to LAB* — a free, privacy-first RAW photo editor for iPhone, iPad, and Apple Silicon Mac. Edit RAW files straight from your SD card, use professional tools including masks, curves, and HSL, then share your presets with the community.