Ever wished you had a clear, thoughtful answer when someone challenges your faith — at work, at school, or over dinner? The Stand to Reason app puts over 30 years of trusted apologetics training in your pocket, so you can engage any conversation with confidence, clarity, and grace.^1
Founded by Greg Koukl in 1993, Stand to Reason trains Christians not just what to think, but how to think — emphasizing the ambassador model of knowledge, wisdom, and character working together. The app delivers Greg's weekly radio and video podcasts, STR's daily blog, featured articles, Solid Ground publications, and mentoring letters, all organized for easy browsing on iOS and Android.^1
STR's distinctive approach is asking good questions rather than winning arguments. Rather than dumping information on people, Koukl's Tactics method teaches believers to lead with curiosity — listening well, raising thoughtful challenges, and letting the weight of truth do its work. It's an approach that works at the dinner table, the university quad, or the office break room.^3
Beyond the app, STR offers STR University — a completely free online training program with interactive courses on apologetics, the reliability of the Gospels, science and faith, and more. Recent additions include courses on engaging Muslims, engaging Jehovah's Witnesses, biblical inerrancy, and the origin of life.^4 They also host Reality Apologetics Conferences nationwide to equip students and church leaders in person.^5
In 2025–2026, Greg Koukl gained significant mainstream exposure through a round-table appearance on The Diary of a CEO with Steven Bartlett and Alex O'Connor, debating whether transformed lives serve as evidence for Christianity — introducing STR's approach to millions of new viewers.^6
Why Christians Love It"Stand to Reason has been monumental in my journey to Christ! It has helped me have discussions about Jesus and Christianity in a graceful and confident manner."^2
"The folks at Stand to Reason have taught me how to think and learn about God, the Bible and what matters most. They have given me tools to discover and share the Christian worldview in a way that communicates its reality and truth."^2
"This app is outstanding! Through it I have access to a myriad of resources, including the weekly podcasts and archives of articles and videos on critical topics. The materials are unparalleled in equipping followers of Jesus and seekers to know and defend the truth in a persuasive manner."^7
Notable- Led by Greg Koukl alongside speakers Alan Shlemon, Tim Barnett, Jon Noyes, and Robby Lashusa, with Amy Hall contributing regularly to the #STRask podcast^3
- Over 1 million monthly website visitors and 1.8 million annual podcast downloads across 178 countries^8
- Greg Koukl is a bestselling author of seven books, including Tactics, Street Smarts, and The Story of Reality, and an adjunct professor of Christian apologetics at Biola University^3
- Greg appeared on The Diary of a CEO (2025–2026), one of the world's largest podcasts, debating Christianity with atheist Alex O'Connor^6
- Featured on Focus on the Family, the BBC, and in a national TV debate with Deepak Chopra on Lee Strobel's "Faith Under Fire"^3
- Available in English, French, Portuguese, Simplified Chinese, and Spanish^2
