Cato: Learn the Catholic Faith

Cato makes learning the Catholic faith a daily habit: a lesson, a prayer, and a passage of Scripture in about five minutes a day.

Whether you're a lifelong Catholic, returning to the Church, going through OCIA, or just curious about Catholicism, Cato helps you understand what the Church teaches and why.

LESSONS THAT STICK
• Nearly 750 short lessons, from the existence of God to the sacraments, the Mass, and the last things
• Courses on the Rosary, the liturgical seasons, and the lives of the saints
• Grounded in Scripture and the Catechism of the Catholic Church
• You learn by answering quiz questions, not just reading

PRAY EVERY DAY
• An interactive Rosary
• The Ignatian Examen
• Novenas
• Guided morning and night prayers to open and close the day

THE WHOLE BIBLE
• Read the full Catholic Bible, search it, and highlight passages
• Today's daily Mass readings are a tap away

COMPETE AND CONNECT
• Live Catholic quiz battles against other users
• Earn XP that counts toward your diocese on the leaderboard

KEEP THE FLAME
• Daily streaks and XP that keep you coming back
• Available in English, Spanish, and Portuguese

Free to start. No ads, ever.

Download Cato and start learning your Catholic faith today.

Recent changes:
New saint courses and a Saints page, trivia that links back to the lesson behind each answer, puzzle races with friends, and a Church-year home screen widget. Plus smoother puzzles, cleaner search, and fixes.