Android
Google Play · free · out now
- Tap the button below to open Google Play
- Tap Install
- Open Cornerstone and start reading
Free · Offline · No account
Cornerstone
Read the Bible. Learn the Faith.
A Catholic Bible companion with the full 73-book canon, Church Fathers commentary, Baltimore Catechism, daily quizzes, and guided audio devotions — the Rosary, the Divine Mercy Chaplet, the Angelus — no account required.
Now on Google Play
Now on the App Store
Plus free this August
Free on Google Play and the App Store — no account needed. Want early iPhone/Android builds? Join beta testing →
Your daily home
FEATURES
What’s in the app
Scripture, catechesis, and daily practice — offline by default.
Guided audio devotions
Pray the Rosary — all four sets of mysteries — plus the Divine Mercy Chaplet and the Angelus. A warm, unhurried voice leads every prayer, with the words on screen to follow.
Full Catholic Bible
73 books including the Deuterocanonicals — Douay-Rheims, CPDV, WEB-CE, and KJV.
Church Fathers
Commentary from Origen, Chrysostom, Augustine, and the Catena Aurea on the verse you’re reading.
Baltimore Catechism
Traditional teaching in structured lessons — formation or a refresher of the basics.
Reading plans & quiz
Day-by-day plans that track progress, plus a daily Bible quiz with streaks.
Faith journey
Earn XP from quizzes, lessons, and chapters. Level up from Seeker to Saint.
Confession & prayers
Examination of conscience, walkthrough, and traditional prayers always at hand.
LIMITED TIME
Plus is free — all August
Every premium feature, unlocked for everyone through August 31. No purchase, no account, nothing to cancel.
$6.99/mo
→
Free
Unlimited lessons
No daily cap on Baltimore Catechism or Know Your Bible lessons — learn at your own pace.
Every Church Father
Full commentary from Origen, Chrysostom, Augustine, and the Catena Aurea on every verse, not just the first.
Narrated Scripture Soon
The Bible read aloud chapter by chapter by a warm, unhurried voice — closer to a storyteller than to a phone reading text. Every book, ready for the commute or the end of the day.
Support the mission
Plus normally helps fund an independent Catholic app — this month it's simply a gift.
Annual plans are normally $49.99/year. This August, just open the app — Plus is already unlocked, automatically, for every user.
DOWNLOAD
Two minutes to get in
Pick your phone. Short steps, one clear button.
iPhone
App Store · free · out now
- Tap the button below to open the App Store
- Tap Get
- Open Cornerstone and start reading
Start today
Cornerstone is free, made by Michael, an independent developer, for the Catholic faithful. Download it and read a chapter tonight.
“…built on the foundation of the apostles and prophets,
Christ Jesus himself being the chief cornerstone.”
— Ephesians 2:20