True2Size — Size Recommender

True2Size adds a size recommendation widget to your Shopify product pages in minutes without needing a developer. Shoppers answer a quick questionnaire or enter their measurements to get instant size recommendations for each product. The widget shows confidence scores so customers know how well each size fits their measurements. Merchants can upload size charts via CSV or manual entry and easily map them to products. Returning visitors get recommendations right away since their sizing profiles are automatically saved. The widget comes in multiple themes to match your store's brand colors and supports six languages based on browser detection.