Barcode scanning is the single feature that made calorie tracking usable for most people. Before it existed, you had to manually search for every food and estimate serving sizes. With a barcode scanner, packaged food takes 5 seconds to log. Here are the best barcode food scanner apps for Android in 2026. What Makes a Good Food Barcode Scanner? Database coverage: Does it recognise barcodes from your country and the brands you buy? Larger databases mean fewer "barcode not found" errors. Serving size accuracy: Does it log the correct serving size, or do you need to adjust every time? Speed: How quickly does the camera lock onto the barcode and return results? Free vs. paywalled: Some apps lock barcode scanning behind premium subscriptions. Integration: Does the scan log directly to your food diary, or require extra steps? 1. NutriBalance — Best Free Barcode Scanner + AI Label Scanner Platform: Android Price: Free NutriBalance combines a barcode scanner with an AI food label scanner in the same free app.…