Ship copy that 1,000 people already signed off on.
Paste any ad, email, landing page, or launch post. CrowdTest spins up a synthetic audience, runs it through a simulated feed, and tells you exactly what they'd ignore, share, or push back on, before you spend a dollar of ad budget.
60 seconds from paste to pushback.
No onboarding. No calendar holds with a consultant. Drop copy in, pick an audience, see what they think. That's it.
Drop your copy.
Ad, cold email, launch tweet, landing hero, pricing page, cold DM. Long or short. We'll shape the simulation around the format.
Pick a crowd.
50–500 personas. SaaS B2B, DTC commerce, consumer app, indie, agency, enterprise IT. Or build a custom niche with 3 attributes.
See what they think.
Engagement score against an industry benchmark. A scrollable feed of reactions. The objections ranked. The rewrite that fixes them.
Seven readouts, one simulation.
Every run returns the same artifacts. Compare across runs, diff across rewrites, watch your score climb.
Simulated feed
A scrollable stream of personas reacting in character. Skeptics scroll past. Fans reshare. Critics quote the exact line that lost them.
Engagement score
A single calibrated number, 0–100, against the industry benchmark you chose. Not a vibe. Calibration methodology is public on the accuracy page.
Objection map
Every reason your audience won't buy, ranked and quoted verbatim. The fix-this list, pre-sorted by impact.
Dissenting voices
The harshest comment your copy will receive — shown to you privately, so you can pre-emptively fix it before it's ever a real reply.
A/B experiments
Two versions, same crowd, same feed, clear winner. Quantified delta. No 14-day wait. No real traffic spend.
Suggested rewrites
Targeted rewrites that kill the top objection. Paste-ready. Each shows the projected score lift before you apply it.
Every industry that ships marketing copy.
CrowdTest isn't category-locked. Simulate any audience — B2B, DTC, consumer app, creator, agency, indie — with real calibration data for each. Pick one to see what they're saying.
Cheap enough that you won't overthink it.
Free tier is real. Paid tier pays for itself the first time it saves a launch. No seats. No usage-based gotchas.
Free
For founders testing the waters. Runs on Groq.
- →3 simulations per month
- →Up to 500 personas
- →Engagement score + feed + top 3 objections
- →Public shareable result URLs
- —Dissenting voices
- —A/B experiments
Pro
For anyone who ships copy weekly. Claude-powered.
- →Unlimited simulations
- →Up to 1,000 personas
- →Everything in Free
- →Dissenting voices unlocked
- →A/B experiments + score diff
- →Custom personas + saved audiences
- →Rewrite suggestions + diff view
Team
For growth + PMM teams that need shared history.
- →Everything in Pro
- →5 seats (add more at $15/ea)
- →Shared workspaces + comments
- →Calibration methodology export
- →Slack integration
- →Priority simulation queue
Your next ad is 60 seconds away from being 40% better.
Paste a headline you're about to run. See the objections. Rewrite. Re-run. Ship the winner. Total time: 3 minutes.