Pressure-test every change on a model of your real audience
ION turns your traffic into AI personas, then runs them through your change and your live site, before a single real visitor sees it. You ship what your customers already responded to.

It starts with who actually visits you
ION reads 30 days of your real traffic and builds a handful of weighted audience archetypes, each with the motivations and objections that actually move them. Generate them from analytics, a prompt, or write your own.
Health-conscious loyalist
Baseline conversion 5.4%Motivations
Objections
Expanded into ~50 distinct people for every run
They judge what's on the page, not which one is yours
Each persona runs as an agent in a real browser, on your change and on your live site. The two are shown blind, as Experience A and B, so a persona only reacts to what it genuinely notices, the same integrity guardrail a good A/B test gives you, before you spend any traffic.
Maya Patel
Read ingredients, added to cart
Darnell Brooks
Left to check reviews, returned
Sofia Greco
Compared specs, bookmarked
Liam O'Brien
Hit shipping cost, abandoned
Priya Nair
Subscribed via offer banner
Marcus Webb
Searched competitor, came back
Personas can leave, search the web, compare rivals, and return, just like the real thing.
Every persona tells you why
You don't just get a number. You get each persona's drivers, objections, and points of confusion, aggregated into a conversion lift that's calibrated against your real baseline rates, not an unbounded guess.
Driver: New ingredient callouts answered her main question
Driver: Liked the bundle price
Objection: Couldn't find the return policy
Driver: Spec table let her decide without leaving
Confusion: Hesitated on which size to pick
How the number stays honest
Predicted lift is anchored to the conversion rates your traffic already shows, and the variant effect is clamped to a realistic range, never an unbounded model guess.
Run a simulation on its own, or as a pre-flight check on any experiment and see the likely winner before it ever touches live traffic.
See it on your site