Cited search

Search is Theca's superpower: hybrid (by meaning and by exact word) and always sourced.

How to search

Type your question in the Search view. Search your whole library or narrow by book, and choose hybrid, semantic, or exact mode.

The answer

At the top, an AI overview answers your question using only your sources. Below it, every matched passage shows the book, the page, and a link to open it in the reader.

Why citations matter

AIs sometimes make things up. In Theca every claim is traceable: if the overview says something, tap the citation and verify it against the original text in seconds.