AdFontes.AI
Pricing

Three postures.
All three honest.

Free forever for the curious. A fair price for the disciplined. A way to sustain the work for those who want others to drink from these springs.

Discere

Postulant

Begin where every catechumen begins. Sample the tradition without commitment.

Free

No card required

  • 5 conversations per month
  • One-on-one Chat mode
  • Any single theologian per session
  • Citation-grounded answers
  • Light & dark themes
Most chosen
Studere

Scholar

For the disciplined reader. Unlimited access to every mode and every voice.

$12/ month

or $120/year — save ~17%

  • Unlimited conversations
  • All 39 theologians in residence
  • Panel mode — up to 4 voices
  • Study mode — verse-by-verse
  • Bookmarks, history, exports
  • Cross-device sync
Ministrare

Patron

Sustain the work and gift the gift. For those who want others to drink from these springs.

$24/ month

or $240/year — save ~17%

  • Everything in Scholar
  • Early access to new voices
  • Priority support
  • Gift one Postulant tier per month
  • Recognition in the founders’ scroll
  • Direct line to the team
Compare

What’s in each tier

The honest table. Hover for details.

FeaturePostulantScholarPatron
Monthly conversations5UnlimitedUnlimited
One-on-one Chat
Panel mode (up to 4)
Study mode (Scripture)
All 39 theologiansSingle
Citations & sources
Bookmarks & history
Conversation exports
Early access to new voices
Priority support
Gift a free tier monthly
Questions

Honest answers

If something’s missing here, write us — hello@adfontes.ai.

  • Are the answers actually grounded in the theologians’ own writings?

    Yes. Every response is generated from a vector index over the actual primary sources — Confessions, the Summa, the Institutes, sermons, letters — and citations are surfaced inline so you can verify any claim. We are explicit about modal limitations: the model can paraphrase and apply, but it cites where claims come from.

  • Can I cancel anytime?

    Anytime, in two clicks. No contracts, no retention dark-patterns. If you cancel mid-cycle you keep access through the end of the period.

  • How do you handle disagreements between theologians?

    We don’t flatten them. Calvin sounds like Calvin; Wesley sounds like Wesley. Panel mode lets you watch them argue in real time, each holding their convictions intact. The point is not consensus — it is conversation.

  • Is this a substitute for a pastor or spiritual director?

    No. AdFontes is a study companion, not a confessor. It is excellent for catechesis, for deepening reading, for stretching across traditions you wouldn’t otherwise meet. It is not for cure of souls — go to a flesh-and-blood shepherd for that.

  • What happens to my conversations and data?

    They are yours. Stored encrypted, available to export at any time, deleted on request. We do not sell or share. We do not train external models on your conversations.

  • Do you offer student or ministry pricing?

    Yes — write us at hello@adfontes.ai. Seminarians, pastors, and missionaries get extended trials and discounts. We mean it.