The Library
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Email subject line — 5 variants ranked
Paste your email body, get 5 distinct subject lines ranked by hook style so you can A/B confidently.
Design an A/B test
Designs an A/B test with hypothesis, variants, primary metric, and decision rules.
Run a pricing experiment
Designs a pricing experiment with hypothesis, variants, sample size, and decision rules.
Write 5 webinar landing pages
Generates five complete webinar landing page variations testing different angles.
Generate landing page hypothesis tests
Suggests ten A/B tests for a landing page with hypothesis, expected lift, and effort scoring.
Build an 'AB test results to action' protocol
Converts an A/B test result into a deployment + learning action plan.
Generate 10 LinkedIn hooks for a single post
Produces ten distinct opening lines for a LinkedIn post so you can A/B test the highest performer.
Write a Facebook ad with 3 variations
Drafts a Facebook ad and three variations with different angles for split testing.
Calculate sample size
Calculates the sample size needed for a survey or A/B test with confidence.
Calculate statistical significance
Calculates significance for an A/B test result with confidence interval and interpretation.