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I'm 13 and I built a free calorie tracker. It's live, and here's everything that broke.

DEV Community: firebase·forkcount·about 23 hours ago
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Every calorie app I tried wanted my email and a card before it showed me anything. So I built one that doesn't.

I don't write code by hand. I describe what I want to Google AI Studio and it writes it. Then I test it on my phone, find what's broken, describe the fix. That's the loop. Two weeks of it.

The app is called ForkCount. forkcount.github.io

What it does

It asks your height, weight, age, gender, and activity level. Then it works out your BMR (Mifflin-St Jeor), your TDEE, and a calorie target that keeps you above your BMR floor. If you try to set a target below that line, it shows you the numbers and explains why.

The rest is a food diary, water tracker, weight log, exercise log, weekly meal plan generator, and a community feed. You type "200g chicken and 150g rice" and it parses the food. No card. No trial. No paywall. No email — just a username and password.

Stack

React + Vite + TypeScript

Firebase Firestore

Firebase Auth

GitHub Pages, deployed from the docs/ folder

No backend.…

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