AI app categories

Search & Research

Find it, and see where it came from.

398 tools · updated Sep 1, 2026

Search and research tools answer questions with sources instead of just links. This category spans AI search engines, deep-research agents, academic and patent search, and document Q&A over your own files. Citations are the whole product here — if you cannot click through and verify a claim, treat the answer as a draft.

Search & Research apps

398 reviewed tools