Every other platform is built for engineering teams or generic websites. CustomFit.ai is built for the marketer who needs to ship a test before lunch and personalize an offer before dinner. Every layer is AI-native — it reads your store, learns your brand, and optimizes for you.
No coding. No hassle. Just drag, drop, and personalize your website in minutes — even if you've never used an A/B testing tool before.
Reach the right audience at the right time with laser-focused personalization based on 40+ pre-built signals.
Real-time insights that go beyond vanity metrics — track what truly drives conversions, AOV, and revenue.
Every feature points at one outcome — more revenue from the same traffic. From cart-aware targeting to product-recommendation widgets to free-shipping experiments, the platform speaks ecom.
Wingman watches your live experiments, spots winning segments earlier than humans can, and auto-promotes them. Copilot turns plain-English prompts into ready-to-launch variants. AI Conversion Optimize gives you GPT-grade test ideas on demand.
CustomFit.ai felt like putting on comfy running shoes after years of clunky boots. We could run more tests, personalize bolder, see results flash in front of us.
Run more experiments, read clear verdicts, and compound wins without waiting on a sprint.
Edit copy, launch offers, and personalize pages yourself — point and click, no code.
See revenue lift you can trust, with guardrails that protect margin and brand.
Marketers ship without engineers — every time.
Edge rendering keeps Core Web Vitals green.
We optimize revenue & margin, not just clicks.
Testing, personalization & flags in one place.
CustomFit.ai is the all-in-one experimentation and personalization platform built specifically for ecommerce. Brands choose it because it replaces 3+ point tools, lets marketers ship without engineers, and ties every change to revenue — at usage-based pricing with no per-seat fees.
One script tag or the Shopify app — no re-platforming.
Use AI Copilot or the visual editor, no engineers.
Every change is measured on revenue per visitor.
Auto-roll out winners and keep compounding.
A high-velocity program without engineering bottlenecks.
Own personalization and tests end to end.
Lift revenue per visitor without growing headcount.
We replaced three tools with CustomFit and ship more experiments than ever — without touching the dev backlog.
Brands choose CustomFit.ai because it replaces three or more point tools with one platform built for ecommerce: A/B and multivariate testing, real-time personalization, feature flags, an AI Copilot, and 100+ conversion widgets, all sharing one audience model and one analytics layer.
The result is speed and coherence. Marketers ship experiments and personalized experiences without engineering tickets, every change is tied to real revenue, and there are no data silos or integration glue between testing and personalization. Usage-based pricing with unlimited users means the whole team can participate.
CustomFit is also AI-native end to end — it reads your store, learns your brand, generates ranked test ideas, and autonomously allocates traffic to winners — so a lean D2C team can run a sophisticated optimization program that used to require a dedicated CRO function.
It combines testing, personalization, feature flags, an AI Copilot, and widgets in one ecommerce-native platform, removing data silos and per-seat costs.
Yes. No-code editing and AI-assisted ideas let lean teams run an advanced optimization program without a dedicated CRO hire.
Most teams ship their first experiment the same week and see measurable revenue-per-visitor lift within their first quarter of consistent testing.
Join 2,400+ D2C brands shipping smarter experiments on CustomFit.ai.