I got tired of paying for nutrition apps that don't deliver. Fitatu especially: the AI is a joke and the subscription isn't cheap. So I sat down and built my own. Ritatu tracks macros by meal, lets you scan barcodes, search products through Open Food Facts, and take a photo of your food to get a breakdown from GPT-4o mini. Everything stays on the phone. No account, no backend. Built the whole thing with Claude helping me write code, which made it way faster than working alone.