Tools and guides

Free tools that run in your browser, and decision structures you can copy.

• Google Ads conversions but no recorded paymentsTool
• Ad-platform revenue versus collected cashTool
• How much can I spend to acquire a customer?Tool
• Growth experiment libraryGuide
• Customer acquisition cost after refundsTool
• When to pause a campaign with signups but no salesGuide
• How to set a spending limit for a marketing experimentGuide
• How to compare two growth proposalsGuide
• How to write a business brief operators can act onGuide
• A worked decision: sources to resultsGuide