Big Book via LLM

Ask the Big Book anything.

The AA Big Book on your iPhone — ask questions in plain language and find any passage instantly. Answers come from the text, not the internet. On-device AI means your questions never leave your phone.

Natural language Q&A

Ask the way you think — "What does the book say about resentment?" or "Where are the Promises?" The AI finds the answer in the text, not the internet.

Passage search

Find any passage fast — by phrase, by topic, or a half-remembered line. "Something about the sunlight of the spirit" will get you there.

On-device AI

Powered by Apple Foundation Models, running entirely on your iPhone. No third-party AI services. No cloud. No API calls leaving your device.

Fully offline

Works without an internet connection. Your phone's Neural Engine does all the work locally — useful in meetings, on planes, or anywhere without signal.

Grounded answers

Responses are drawn directly from the AA Big Book text — not from a general-purpose chatbot. The source is cited so you can read it in context.

No account required

Download and use immediately. No sign-up, no email, no subscription. Nothing to create, nothing to share, nothing to lose.

Newcomers

Ask questions in plain language without feeling like you should already know the answer. A patient, private way to explore the text at your own pace.

Sponsors

Find exactly what the book says on a topic — fast, during a call or before a meeting. Reference the text directly rather than working from memory.

Long-timers

You know the book — but there's always more in it. Ask questions you've never thought to look up. Surface passages you haven't thought about in years.

All local

Every question and answer stays on your device. Nothing is sent to any server — ever.

No account required

No sign-up, no email, no login. Open the app and start asking.

No internet required

Works fully offline. Apple Foundation Models run on your iPhone's Neural Engine.

No tracking

No analytics, no crash reporting, no third-party SDKs. Your questions are yours alone.

No third-party AI services. Native iOS performance throughout.

Q&A engineApple Foundation Models
EmbeddingsCore ML · on-device inference
ConcurrencySwift 6 structured concurrency
StorageOn-device only · no cloud sync
PlatformiOS 26+

Requirements

  • iOS 26 or later
  • iPhone with Apple Silicon
  • No internet connection required
  • No account required