Bisi² - Offline AI Assistant

An AI assistant that works where the internet doesn't: expert survival library, offline Wikipedia, free textbooks - and your own books. Nothing leaves your phone.

Bisi² is an AI assistant that runs entirely on your phone. No internet, no cloud, no account. Ask it anything in airplane mode, in a blackout, on a mountain, off-grid.

WORKS WHERE THE INTERNET DOESN'T The AI model runs on your device. Answers draw on real sources in your offline library, and the app lists the books it consulted right under the answer.

AN EXPERT SURVIVAL & PREPAREDNESS LIBRARY One curated pack: 283 field-guide articles with 90+ illustrations across 13 topics - general survival skills, first aid, water treatment, food storage, off-grid cooking, energy and fire, shelter, edible and poisonous plants, animals and fishing, gardening, emergency radio, personal and home safety, and civil defense. Every article is grounded in authoritative sources (EPA, CDC, FEMA, USDA, current first-aid guidance) and checked against today's recommendations, including the places where old field manuals are dangerously out of date.

OFFLINE WIKIPEDIA & FREE TEXTBOOKS Add offline Wikipedia - from a compact top-articles pack up to the full text of the 50,000 most-read articles, or all of Simple English Wikipedia - plus twelve free OpenStax university textbooks: biology, chemistry, physics, calculus, astronomy, microbiology and more, all free.

BRING YOUR OWN BOOKS Import an EPUB, MOBI, PDF, or a ZIP of HTML pages and it becomes a searchable part of your library the assistant can quote and cite - converted on the device, never uploaded. A one-time unlock.

PRIVATE BY ARCHITECTURE Your questions, chats, documents and location never leave your phone - there is no server that could receive them. No analytics, no ads, no accounts. The privacy policy is short because there is almost nothing to disclose.

BUILT FOR REAL CONDITIONS • Works fully offline after the initial model download • Library sources consulted are listed under answers • Figures and diagrams shown right in the chat • Personal memories: it remembers your gear, allergies and notes - locally • One-time purchases. No subscriptions.

Bisi² provides general reference information, not professional medical advice. In an emergency, call your local emergency number.