Note-Taking

Audiopen

Turns rambling voice memos into clean prose, one-time payment

Lilys AI

Turn hours of YouTube videos, PDFs, and podcasts into structured, cited notes in minutes.

RemNote

All-in-one AI study tool combining networked notes, PDF annotation, and spaced-repetition flashcards.

Tencent ima.copilot 腾讯ima

Tencent's research-notebook AI assistant