Stand to Reason

Stand to Reason puts Greg Koukl's apologetics training in a free iOS and Android app so you can keep learning how to talk about the Christian faith with clarity and grace.^1^3

Koukl founded the ministry in 1993 and still serves as president. He has spoken on more than 90 university campuses and has hosted a call-in radio show for over 30 years. His books include Tactics, Street Smarts, and The Story of Reality.^4

The app gathers his weekly radio and video podcasts, STR's daily blog, featured articles, Solid Ground publications, and mentoring letters so the same teaching that lives on the website travels with you.^2

STR trains ambassadors for Christ: knowledge, wisdom, and character working together, and an even-handed, incisive, yet gracious defense of classical Christianity.^1^7

Stand to Reason University is a free online program of short interactive courses, including Engaging Jehovah's Witnesses and Unbreakable: A Clear Case for Biblical Inerrancy.^6 Senior apologist Alan Shlemon is the ministry's president-elect while Koukl continues to host and lead.^8

Last updated: August 30, 2026

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