Know which design will win. Instantly.
Our platform simulates how your target audience interacts with your UI variants, delivering statistically significant A/B test results in minutes. Stop uncertainty and start deploying validated winners.
🔒 Private beta. Get your first simulated A/B test free.
Before Sigil
AI Analysis
evaluating...
After Sigil
Before Sigil
AI Analysis
evaluating...
After Sigil
Live A/B testing is a slow, expensive roadblock to growth.
The traditional approach exposes you to customer risk and delays your growth.
Weeks of Waiting
You wait for weeks to gather enough traffic for a single test, only for the results to be inconclusive. Your entire roadmap grinds to a halt.
Wasted Resources
Every live test is a tax on product, engineering and design time, pulling your best talent into a slow process of speculative guesswork.
High Stakes & Risk
Testing a losing variant isn't just a waste of time—it can actively hurt your customer experience, conversion rate, branding and revenue.
Unlock your product's full potential.
Minimize risk, waste and delays.
Upload Your Variants
Connect your Figma file or simply upload your designs. Tell us what you want to test. No code, no scripts, no complex setup.
Our AI Simulates Your Test
We unleash a Digital Population that mirrors your target users to interact with your designs, simulating thousands of sessions in minutes.
Get Your Winning Result
Receive a data-backed report showing the clear winner, the predicted conversion uplift, and behavioral heatmaps to show you why it won.
Your Unfair Advantage in Optimization.
You're not just running a test; you're building a proprietary optimization engine.
Learning Engine
Our Digital Populations don't just run tests; they learn from each one to improve future predictions.
Faster & More Predictive
Every simulation refines our models of your user behavior, making your next A/B test even better.
Proprietary Advantage
You're building a proprietary optimization engine tuned specifically to your customers.
A Battle-Tested Team, Forged at Scale and in the Arena
Our founding team blends the discipline of building world-class systems at scale with the hard-won wisdom of launching and iterating in the startup trenches.
From enterprise-scale engineering at Amazon to building and scaling startups, we've seen what works and what doesn't. This experience drives every decision we make.
Companies Worked At
Amazon
StubHub
Viagogo
Startups Founded
Circus AI
Narrabel
Finally, an A/B test that can't lose.
Why delay your growth? Validate your ideas in minutes and ship with the confidence of knowing you're about to increase your conversion rate. The era of speculative testing is over.
Private beta. Invites are limited.