Growth experiment library

Each method states what to change, what evidence it needs, what it costs, how it is measured and when to stop. Adapt one and it becomes a private protocol for your company.

Improve SaaS trial-to-paid conversion
Activation-triggered trial follow-up
Send help to trial users at the moment they stall before the activation event, and compare paid conversion against users who get the standard sequence.
Reduce customer acquisition cost
Search-term exclusion test
Exclude search terms that spend without producing collected payments in a subset of campaigns, and check whether paid customer volume holds.
Increase annual subscription adoption
Annual plan offer
Offer an annual plan at a discount to a random share of buyers and compare cash collected, retention and contribution, not just the take rate.
Reduce checkout abandonment
Checkout friction removal
Remove one identified friction point from checkout for a random share of visitors and compare collected orders.
Improve qualified lead conversion
Lead qualification change
Change how leads are qualified before sales time is spent, and compare paid customers per sales hour rather than lead counts.
Test a pricing increase
Pricing increase with conversion and retention checks
Raise the price for a random share of new buyers and judge it on retained contribution, not first-month revenue.