CustomFit.ai

CustomFit.ai is the website personalization, A/B testing, and conversion rate optimization (CRO) platform for Shopify and D2C brands. Personalize every visit, run rigorous experiments, and lift revenue — without engineers. Lift conversion by 11–40% with A/B testing & personalization. The CRO platform 2,400+ Shopify and D2C brands trust. No engineers. No flicker. Live in 4 minutes. We'll get back within an hour. No sales pitch, no spam. Median results from brands running 6+ experiments in their first quarter. It reads your page, learns your brand, then builds the change. Most AI tools just give suggestions. CustomFit Copilot studies every detail of your page — copy, brand guidelines, product & ingredient details — then its ML engine (CustomFeds) generates the change and self-iterates until it's right. Plain-English in, on-brand experience out.