AI explanations rooted in real scholarship. Original Hebrew and Greek. 430,000 cross-references. Church Fathers. Study notes with AI synthesis. All free to start.
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studykairos.com
John
Chapter 3 · ESV
John 3:16
Ezra explains
“Loved” is G25 ἠγάπησεν — unconditional, self-giving love...
Cross-references
Why Kairos exists
We're not here to replace them — we're fans of all three. But there's a gap no single app fills. Kairos tries to close it.
YouVersion
✓ Great for daily reading, streaks, and community
The gap
Doesn't go deep. You can read the verse. You can't understand it.
Logos Bible Software
✓ The most powerful Bible software ever built
The gap
$30–100/month and a learning curve that takes weeks. Built for pastors and academics, not everyday Christians.
Blue Letter Bible
✓ Brilliant reference tool — Strong's, Thayer's, interlinears, all free
The gap
Incredible data, but the UI is stuck in 2005. The depth is there — the experience isn't.
The Kairos idea
What if you had YouVersion's accessibility, Blue Letter Bible's depth, and Logos's scholarly tools — in one app, free to start, that actually feels good to use?
What's inside
Ask anything about what you're reading. Ezra draws on historical context, original languages, and 2,000 years of Christian scholarship — not generic AI responses.
Type a struggle or goal — “dealing with fear”, “learning to forgive” — and Kairos surfaces the passages that actually speak to it.
Example search:
“dealing with anxiety”
Every Hebrew and Greek word with Strong's numbers, Thayer's and BDB definitions. Tap any word to see it instantly.
Every verse connected to related passages from the Treasury of Scripture Knowledge — used by scholars for 200 years.
Write notes alongside any passage. Then let AI surface connections across everything you've written — themes you hadn't noticed.
Read Augustine's Confessions, Athanasius on the Incarnation, Justin Martyr's Apology — the earliest Christian commentary on Scripture, readable alongside the text.
ESV, BSB, WEB, and KJV. Switch instantly while reading. Each reflects a different tradition and translation philosophy.
Full-text search across the entire Bible, filtered by book, testament, or translation. Find any word or phrase in seconds.
Reading as a Catholic, Reformed, or Orthodox Christian? Set your tradition and Ezra shapes its answers around the theology you actually hold. Not a one-size-fits-all AI.
31,102
Verses
430K
Cross-references
14,100
Hebrew & Greek words
How it works
Navigate by book and chapter, use full-text search, or let Kairos suggest a starting point based on your goal.
The study panel opens instantly — Ezra explains it, cross-references link out, original words expand, and you can highlight, bookmark, or quote it into your notes.
Your notes, highlights, and study sessions accumulate. AI surfaces connections across everything you've written. Reading becomes studying.
What readers say
“I've been studying the Bible for 20 years. Kairos surfaces things I never would have found — the verse discovery feature alone is worth it.”
Sarah W.
Sunday school teacher
“The original language tools and Church Fathers section are what I'd normally need Logos for. This is Logos for people who aren't pastors.”
Marcus T.
Seminary student
“I searched 'dealing with anxiety' and it found Habakkuk 3 — a passage I'd never connected to that struggle. That's not something keyword search finds.”
David K.
Daily reader
Pricing
The free plan has more than most apps charge for. Pro unlocks unlimited AI and the full depth of the library.
Free
$0
Always free. No card needed.
Pro
Most popular$9.99 /mo
or $89 / year · save 26%
Who uses Kairos
Daily readers
Who want to understand, not just check a box
Small group leaders
Who prepare to teach, not just read aloud
New believers
Who have questions every other verse
Lifelong students
Who still find things they haven't noticed