Photo Extension Histogram

Photo Extension Histogram is a lightweight photo utility that brings professional histograms into the iOS Photos app. Instantly visualize luminance and RGB distribution to judge exposure, contrast, and color balance without leaving your editing workflow. Core features: real-time luminance and RGB histograms with highlight and shadow clipping cues; seamless Photos extension for one-tap analysis of HEIF, JPEG, and RAW photos; fast, offline, and privacy-friendly design made for photographers and creators who need accurate exposure analysis on iPhone and iPad.