Liminal: Learn Philosophy

Explore Western philosophy through 104 lessons arranged into 23 courses and four year-groupings. Start with philosophical questions and ancient thinkers, then move through medieval, early modern, modern and contemporary thought. Study at your own pace.

START WITH 10 FREE LESSONS
The first 10 lessons are free. One optional, non-subscription in-app purchase unlocks the remaining 94. The reference and practice features below are available without that purchase.

FOLLOW A STRUCTURED PATH
Year 1: Foundations and ancient philosophy.
Year 2: Medieval and early modern philosophy, including a course on Islamic and Jewish thinkers.
Year 3: Modern philosophy, from Kant to pragmatism.
Year 4: Contemporary philosophy, including language, mind, ethics, political philosophy and science.

READ, QUESTION AND REVIEW
- 48 philosopher profiles and an 82-term glossary.
- 23 practice quizzes with 319 questions and answer explanations.
- 16 thought experiments and 10 branches to explore.
- Spaced review of glossary terms.
- Search across lessons, courses, profiles and glossary entries.
- Bookmarks, personal notes and study-progress views.
- Lesson read-aloud using your device's system voice.
- Home Screen widgets for a daily philosophical idea, term and thinker.

STUDY INTERPRETATIONS WITH REFERENCES
Dedicated source cards, daily ideas and profile passages present Liminal's original paraphrases with citations. They are interpretations for study, not verbatim translations of the cited works.

READ WITHOUT A CONNECTION
Lesson and reference text is bundled for offline reading, subject to the lesson unlock. Buying, restoring, checking changed purchase access and opening external links may require a connection. Narration uses the voices available on your device.