Pre-launch message testing
See how the internet reacts
before you ship it.
Proofcast runs your positioning, page, and creative past a simulated crowd of a million people — so you know what converts, what falls flat, and what gets roasted, before you spend a dollar putting it live.
Free, no credit card · paste a landing page or load a sample · first report in about a minute
The society cloud
Watch a launch spread through a million people.
Opinion travels in waves — adopt, watch, or roast. It's the same crowd that produces your report; click the field to send a wave through it.
— Proof, not promises
real launches we called right — graded blind, before we saw a single number.
“Don't trust our deck. Hand us five launches you already know the outcome of. We see only the pre-launch material — the page, the creative, the price — and call how the crowd reacted. Every prediction is locked before we see your numbers.”
Small sample, and we say so — 6 launches. Every call is published, hits and misses both. With only six tests, one miss is the honest cost of not cherry-picking.
See how blind replay works →— The three-act launch disaster
Launch day is the worst day to learn what the crowd actually thinks.
ACT 01
Reddit turned on you
The launch post your whole team loved got downvoted to zero in an hour. Top comment: “another AI-wrapped cash grab.” You found out what the room thought of your positioning — in public.
“another AI-wrapped cash grab.”
ACT 02
Your best line died on arrival
The hook that tested great in the conference room read as hype, cringe, or noise to the exact people you needed. Nobody told you. The bounce rate did, three weeks later.
ACT 03
Budget torched on the wrong crowd
$80k into Meta and TikTok before you learned the converting segment was niche, your hero creative repelled your target, and your CAC never made sense.
— How it works
We simulate the spread — not the survey.
Surveys tell you what one person thinks. Proofcast shows you how a thousand people talk each other into — or out of — your launch.
01
Feed it the real material
Your landing page, store listing, ad drafts, pricing, and positioning — whatever you're about to put live.
02
We simulate the crowd
We model your audience across Reddit, X, TikTok, Instagram, and Discord, and run how the reaction spreads — who converts, who stays quiet, who pushes back.
03
You get the risk report
A risk map, message-gap analysis, platform-spread scenarios, the complaints and the praise, and prioritized fixes — in plain English, in about a minute.
— Blind replay
Let your past launches grade us — blind.
01
Give us projects whose outcomes you already know.
02
We see only pre-launch material — page, creative, pricing.
03
We simulate it: who converts, what spreads, where it breaks.
04
Only then do we compare against your real numbers — hit rate published.
05
No cherry-picking, no hindsight. Every miss is visible.
— FAQ
Questions you should ask
How is this different from a survey or focus group?
Surveys capture isolated opinions. We simulate a crowd — information flow, social proof, pile-ons, and how a loud minority can swing a launch. You see the dynamics, not just the average.
Is my material safe?
Your inputs stay yours. We don't train shared models on them, and blind-replay outcomes are used only to score our own accuracy.
Can a simulation actually be trusted?
Don't trust it — test it. That's what blind replay is for: we predict launches you already know the outcome of, without seeing the result, and publish every hit and miss.
How fast is a report?
In the free app, a scenario report comes back in about a minute. A hands-on blind replay against your real launches takes a few days.
What does it cost?
Two ways in: a free self-serve app — register and run scenario simulations on your own material, no card, daily quota — and hands-on engagements for teams with a launch on the line.
Which platforms do you cover?
Reddit, X, TikTok, Instagram, Discord, YouTube, plus App Store / Google Play / Steam listings. Taking a global brand into the US? We can simulate both markets in one run.
Start with one launch.
Run one simulation.
Register, create a project, paste your materials, and get a spread-risk simulation in minutes — scenario, not a guarantee.
Scenario simulation — not a guaranteed prediction