FairCompare

Compare products on the metrics that matter to you. FairCompare brings package prices, quantities and nutrition into a clear side-by-side comparison. SCAN, CHECK, COMPARE Import multiple product photos or scan labels with on-device OCR. Check the extracted values, correct mistakes, and add more photos to a product when its price and nutrition are on separate labels. You can also enter products manually. CHOOSE YOUR METRICS Compare compatible unit prices alongside nutrition ratios such as protein per yen, protein per 100 kcal, calories per serving, or fat per 10 g of protein. Choose multiple metric rows and set your own denominator amounts. Label bases can be grams, millilitres, servings or packages. Missing values stay missing, and grams are not assumed equal to millilitres. SAVE AND EDIT Keep selected products and comparisons on your device. Edit saved entries without creating duplicates and see comparisons recalculate. Core scanning, manual entry and comparison work offline without an account. RETAILER SEARCH Open Amazon Japan and Rakuten browser searches, then manually enter confirmed prices, shipping, discounts and package quantities. Retailer websites require internet access. There is no automatic retailer price feed. OPTIONAL PRODUCT CONTRIBUTIONS If you allow automatic contributions, newly saved product details are uploaded to a restricted central database for quality review. You can continue using the app locally without contributing. Stop future uploads or request deletion of your uploaded entries in Settings. Photos and raw OCR text are not uploaded. See our privacy policy for collection, retention and deletion details. Always review OCR results and confirm label basis, package quantity, currency, tax and shipping before relying on a comparison. Product nutrition comparisons are informational, not medical advice.