Calidar AI — Nutrition & Fitness

Architecture & System Design

An iOS application that captures 3D time-of-flight LiDAR depth meshes (with dual-camera stereo fallback) to measure physical meal volume in cubic centimeters before passing the spatial data and RGB frame to Google Gemini 2.5 for gram-weight and macronutrient estimation (~90% accuracy). It pairs the scanning pipeline with continuous Apple Watch / HealthKit workout sync, an adaptive 5-persona AI nutrition coach, and RevenueCat subscription gating.