Engine Update

    Knowledge Base

    1,800,000+

    indexed records

    Primary corpus679,099

    Tanakh, NT, Talmud, classical commentaries, ally sources

    Adversary intel790,850

    Cataloged opposing positions · 146,742 named-author chunks

    Video transcripts167,217

    Sermons & lectures indexed

    Vault entries62,834

    Curated rebuttals

    Today: +65 new sources

    250 prophecies·860 Q&A·262 blog posts

    What if your Bible study tool already did the research?

    Logos gives you a library. ReProof gives you a scholar.

    1,800,000+ curated theological sources. AI-powered citations. Stance-based apologetics. Starting at $24.99/mo.

    Feature-by-feature comparison

    See how ReProof.AI compares to Logos Bible Software across every category that matters.

    FeatureLogosReProof.AI
    Starting Price
    Free version; paid plans from ~$8.33/mo billed annually (per logos.com, July 2026)
    Free tier available — paid plans from $9.99/mo Believer
    Full Access Cost
    Up to $10,800 (Portfolio tier)
    $49.99/mo Champion
    AI Research Assistant
    Basic AI chat (added 2024)
    Enoch — stance-aware AI with 1,800,000+ curated sources
    Apologetics Engine
    No stance-based tools or debate preparation
    Messianic Jewish stance detection, Refiner's Fire, Adversary Vault
    Counter-Argument Intelligence
    Not available
    Auto-ingests anti-missionary, Islamic, and replacement theology arguments
    Source Library
    Licensed commentaries and lexicons
    1,800,000+ curated sources — Talmud, Zohar, Dead Sea Scrolls, Quran, Church Fathers, scholarly journals
    Original Languages
    Full Greek and Hebrew tools — interlinears, morphology
    Strong's Concordance, Sefaria integration, Hebrew acronyms database
    Learning Curve
    Steep — users report weeks to learn the interface
    Natural language — ask a question, get a cited answer
    Knowledge Growth
    Library updates a few times per year
    Hourly — scrapers add new content from 20+ sources daily
    Self-Testing
    Not available
    Refiner's Fire stress-tests every theological position
    Mobile App
    iOS and Android
    iOS and Android (Capacitor)
    Offline Access
    Full offline with book ownership
    Requires internet connection

    Who is ReProof built for?

    Messianic believers defending Torah-observant faith
    Counter-missionary researchers needing instant rebuttals
    Bible students who can't afford $5,000+ in commentaries
    Content creators who need cited research in minutes
    Teachers preparing lessons without hours of manual study
    Anyone debating anti-missionaries, Islamic apologists, or replacement theologians

    The same question. Two different experiences.

    In Logos
    1.Search "Isaiah 53"
    2.Open 3 commentaries
    3.Cross-reference passages
    4.Read 45 pages of material
    5.Take notes manually
    6.Draw your own conclusions
    ~45 minutes
    In ReProof
    "What does Isaiah 53 say about the Messiah?"
    → Cited answer in 10 seconds
    → 8 scholarly sources referenced
    → Counter-arguments addressed
    → Confidence score: 84%
    ~10 seconds

    Pricing, side by side

    Logos Bible Software

    FreeLimited
    Subscriptionfrom ~$8.33/mo (annual)
    Library packages$260 – $10,800
    (per logos.com pricing, July 2026)

    + $10–30/mo subscription for AI features

    ReProof.AI

    FreeFree

    Limited daily messages

    Warrior$24.99/mo

    Unlimited messages, vault access, debate mode

    Champion$49.99/mo

    Full access — all premium features

    "You don't need a $5,000 library. You need an AI that already read it."

    Where Logos wins

    We believe in transparency. Here's where Logos genuinely excels.

    Licensed premium commentaries (BDAG, ICC, NICNT)
    Deep original language morphological analysis
    30+ years of institutional trust
    Full offline access with book ownership

    If you're a seminary student writing academic papers requiring specific licensed commentaries, Logos may be the right choice. If you need a research partner that defends biblical truth with cited evidence, ReProof was built for you.

    Start studying smarter — not harder.

    Try ReProof.AI free. No credit card required. Ask your first question in under 30 seconds.

    Curious how ReProof compares to other religious AI chatbots like Magisterium, LDSBot, and QuranGPT? See the full religious AI comparison →

    Frequently asked questions

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