SaaS Pricing Page eBook - Learn from the best practices of over 270 top SaaS companies
Pricing Page Teardown from ProfitWell - Data and banter behind the best (and worst) pricing pages
(Not Boring) Calculator - As a kid, I loved playing with calculators.
App Cost Calculator - Plan your app development budget within 2 minutes
Stripe Billing - A set of tools for billing and subscriptions
ParityDeals - ParityDeals automates dynamic pricing, enabling you to adjust prices based on location, time of day, or season and boost conversions in individual markets