Flash A/B · Panel Studies · Sandbox+
Know which message wins before you send it.
Calibrated synthetic panels return a directional read in under a minute. Start in Sandbox with zero signup, or run a full study with PDF when the decision matters.
Secondary link opens our benchmark report — how synthetic panels track Pew, Gallup, and state election polls.
No login for your first Sandbox run · 4.88% TX panel MAE · 3.43% on political approval
Flash A/B · finished in 00:00:28
Subject A
…“Quick question about your Q4 stack”
Subject B
“We cut Acme's CAC 23%. Worth 10 min?”
n=50 synthetic SaaS buyers · 4.88% TX panel MAE · directional read
Pick your use case
Pick the winning subject line before Apollo sends
Paste two variants in Sandbox+. Get a directional A/B read on n=20 in under a minute, no signup. Upgrade to Flash or Quick when the send volume justifies it.
Try message preview →Why trust us
Benchmarked against real survey panels.
Panel Studies use a published calibration stack: 4.88% MAE on the Texas state panel, 3.43% on political approval, 7.47% pooled across 460 cross-validated questions. Several benchmark questions land within 1 pp of human survey results. Public forecasts are pre-registrations. Trust accrues when they resolve.
Three ways in
Start free. Upgrade when the workflow repeats.
Sandbox+
Zero signup. Panel poll preview on n=200, or message A/B on n=20. One free run per day per IP, no account.
Try Sandbox free →Message Testing
Flash A/B from ~30 seconds or Quick with a client-ready PDF. Pre-send subject lines, emails, and heroes.
Run Flash A/B →Panel Studies
MAE-calibrated multiple-choice polls with crosstabs, respondent voice, and executive PDF.
How panel studies work →How it works
Sandbox first. Signup second. Subscription third.
Step 1
Try Sandbox free
No account. Paste a question or two subject lines and see a directional read in under a minute.
Step 2
Sign up when it clicks
Work email unlocks 5 Sandbox+ runs per day and 1 free credit for a full PDF study.
Step 3
Subscribe when it repeats
Starter at $149/mo includes 15 credits for teams running studies every week.
Agent telemetry · illustrative
sample[--:--:--] validating city weights · columbus
[--:--:--] loading census priors · complete
[--:--:--] sampling synthetic panel · n=200
[--:--:--] building methodology notes · ready
[--:--:--] convergence reached · entropy=0.84
[--:--:--] signal model calibrated · ready
[--:--:--] report renderer warm · cache 98.2%
[--:--:--] validating city weights · california
Pricing
Subscribe when research becomes a weekly habit.
Sandbox is free. One-off studies from $19. Agency and brand teams at volume: Pro at $499/mo (60 credits, ~$8.32/credit). Solo consultants: Starter at $149/mo.
View all pricingMost popular · agencies & teams
Pro · $499/mo
60 credits
~60 Quick studies or any mix of message tests and panel sizes. Overage at $12/credit.
Pro · $499/mo →Starter · $149/mo →One-off
Quick Study
$19
500 agents · PDF report · 1 credit
Free entry
Sandbox+
$0
No signup · poll + message A/B preview
Validation
Benchmarked, with caveats in every report.
Numbers from our published methodology page. Every paid PDF includes confidence language and audit notes.
4.88%
TX panel MAE
3.43%
political approval MAE
460
questions scored
11 live panels · U.S. national · 4 census regions (16 audiences)
Live seeded panels in OH, GA, TX, CA, NY, and VA. Plus pooled U.S. national and Northeast · Midwest · South · West census regions.
Zero friction
Run your first preview in Sandbox. No signup.
Poll preview or message A/B. When you need the PDF, create a free work-email account for 1 included credit.