Satori

Productivity Free · from $5/mo (Pro)

About Satori

Satori turns passive reading into active learning: highlight passages, and the app schedules review reminders based on spaced repetition so you don't forget key ideas.

What it does

You import articles, books, or PDFs into Satori, highlight text, and add notes. The app then uses an algorithm to show you those highlights at optimal intervals (e.g., 1 day, 3 days, 1 week) to reinforce memory. It also supports tagging and search across your entire library.

Best for

Students who want to retain knowledge from textbooks and research papers
Professionals who read industry reports and need to recall key stats
Lifelong learners who want to build a personal knowledge base from articles

Strengths

Spaced repetition for highlights — reviews are scheduled based on forgetting curve
Import from web, PDF, or EPUB — works with most reading formats
Full-text search across all saved content
Tagging and folders for organizing highlights by topic

Key features

Spaced repetition review — Highlights reappear at optimal intervals for long-term retention
Import from web — Save articles via browser extension or share sheet
PDF & EPUB support — Upload documents and highlight directly
Full-text search — Find any highlight or note across your entire library
Tagging & folders — Organize highlights by project, topic, or priority
Export — Export highlights to Markdown, CSV, or plain text

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