Garu vs Kiwi Sizing: chart or fit engine? (2026)

Kiwi Size Chart & Recommender is the incumbent of Shopify sizing — 4.8 stars across ~1,100 reviews since 2018, from free to $26.99/mo. If your size charts are messy or missing, Kiwi is the correct purchase and the first money you should spend on sizing. Garu is a different generation: a garment-specific fit engine that answers with one size, mapped to your own chart with a confidence score, and renders the piece on the shopper at that size, front and back — for stores where the ~42% of returns that are size-related is a real cost line charts haven't moved. Some stores run both. Kiwi facts from their public Shopify App Store listing, checked August 15, 2026.

Five sizing apps compared · How Garu's AI sizing works · ROI calculator