Barcode Scanning: Engineered a camera-based scan flow with permission handling so users can go from home to product insights in one tap.
Project 08
Healthy Scan
Scan food. Know its story.
A barcode-scanning nutrition app that instantly explains a product's nutrition, processing level, and environmental impact.
FlutterDartFirebaseProviderOpenFoodFactsDio
Try it
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The mission
Why this exists.
Nutrition labels are written to look healthy, not to be understood. Healthy Scan exists so a shopper can scan a barcode in the aisle and instantly see processing level, nutrition quality, and environmental impact — without decoding a science paper.
Inside the build
Thought through, end to end.
5 highlights
Open Food Facts Insights: Integrated product lookup to surface Nutri-Score, Eco-Score, NOVA processing level, ingredients, allergens, and nutrition bars.
Firebase Auth: Built email/password and Google Sign-In with a polished onboarding and login experience.
UI/UX: Designed a health-focused green interface with educational score cards, favorites, scan stats, and a custom wavy bottom nav centered on the scanner FAB.
Architecture: Structured the app with Provider state management, Dio networking, and cached product images across Android, iOS, Web, and Desktop.
The hard parts
Constraints I designed around.
The features that look effortless were the ones that fought back.
- 01
Camera to verdict in one tap
The obstacle
Barcode scanning is usually a permission maze plus a slow lookup, which is fatal in a supermarket aisle.
How I solved it
Engineered a permission-aware scan flow that hits Open Food Facts and lands on Nutri-Score, Eco-Score, NOVA, allergens, and nutrition bars in a single motion.
- 02
Dense data that still reads in ten seconds
The obstacle
Raw ingredient tables overwhelm people who have a cart behind them and a decision in front of them.
How I solved it
Designed educational score cards and visual bars so the product's story is scannable before the fine print.
- 03
Identity without killing curiosity
The obstacle
Favorites and scan history need auth, but a login wall stops the first scan — the moment the product has to prove itself.
How I solved it
Built Firebase email/password and Google Sign-In behind a health-green onboarding that feels like part of the product, not a gate.
Product tour
A closer look inside.
Swipe through the real product screens and the details that make the experience feel complete.
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