MealMargin
MealMargin is a mobile + web app that turns your grocery receipts and pantry basics into a per-meal cost tracker and weekly plan. You scan or forward receipts (or connect a retailer email), and it builds a simple price history for your staples, then estimates the real cost of recipes you already cook. It flags when a planned week is likely to blow your budget, suggests cheaper swaps (brand, store, ingredient), and shows what you’re wasting by overbuying. This is not a “recipe discovery” app; it’s a budgeting tool for home cooking that’s grounded in what you actually pay. The AI component focuses on receipt parsing, ingredient matching, and generating realistic substitutions based on your preferences and dietary constraints. The app stays useful even with imperfect data by letting you confirm items quickly and by learning your common purchases over time.