Each time I launch a mainstream calorie tracker, I get a little cringe. They want my health info, what I eat; everything gets sold, monetised, tracked. Such apps are bloated, flashy, sometimes pretend to be “your coach” but end up displaying ads or pushing me towards subscriptions I didn’t request. I just need something that keeps track of calories; nothing more, nothing less.

Why I Created CalfitPro?

That’s why CalfitPro is here. I created it for individuals like me, who want easy, quick, offline calorie tracking without being stalked by “personalised ads” or sold additional coaching modules. Offline operation, lightning speed, and 100% private. No accounts. No cloud. Just you and your data, on your device, where it belongs.

What’s Under the Hood (The Technical Side)

If you are a geek who loves libraries and setups, here’s the stack:

• Expo
• Tailwind CSS (Nativewind)
• Gluestack UI for core UI
• Zustand
• Expo SQLite
• Drizzle ORM

Built with React Native + Expo, hence runs seamlessly on both Android & iOS. The app stores everything locally with expo-sqlite with Drizzle ORM for type-safe and clean database queries. Drizzle’s Expo driver adds live queries, migration support, and on-device debugging awesomeness.

For searching food products, I useFatSecret API, lightweight, solid; but the app doesn’t send anything else. Just search!

For barcode scanning, I’m using OpenFoodFacts through its excellent free database with an open philosophy.

The UI Core is built with Gluestack, with a lean and consistent design system and no heavy CSS or theme bloat.

That’s all. No frivolous fluff, just reasonable tools that honor privacy and dev sanity.