Liminal - Philosophy Made Easy
Plato to Wittgenstein, offline
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A four-year curriculum in Western philosophy, entirely offline. 104 lessons, Pre-Socratics to contemporary thought on mind and justice. The first ten are free.
The philosophy degree you didn't take... in your pocket, in your own time.
Liminal is a four-year curriculum in Western philosophy, designed to feel less like an app and more like a thoughtful course of study. From the Pre-Socratics of Miletus to contemporary debates over consciousness, you'll meet the thinkers, the ideas, and the questions that have shaped how we understand the world.
WHAT'S INSIDE
• 104 lessons across 23 courses, organized into four years
• 48 philosopher profiles, from Thales to Simone de Beauvoir
• 82 key terms in a searchable glossary
• 16 classic thought experiments — Plato's Cave, the Trolley Problem, Mary the Color Scientist, and more
• 23 quizzes with explanations for every answer
• Spaced-repetition flashcards for the key terms
• On-device audio narration of every lesson — listen on a walk, in the car, in bed
• Home screen widgets: Quote, Term, and Philosopher of the day
THE CURRICULUM
Year 1: Foundations & Ancient — Plato, Aristotle, Stoicism, Epicureanism
Year 2: Medieval & Early Modern — Augustine, Aquinas, Avicenna, Descartes, Spinoza, Locke, Hume
Year 3: Modern — Kant, Hegel, Marx, Nietzsche, Mill, American Pragmatism
Year 4: Contemporary — Wittgenstein, Heidegger, Sartre, Beauvoir, Foucault, Rawls, Kuhn
DESIGNED THE WAY YOU ACTUALLY READ
• Beautiful serif typography for long-form reading
• Tap any key term in a lesson to jump straight to its glossary entry
• Tap any philosopher's name to read their full profile
• Bookmark lessons, philosophers, and terms
• Take personal notes on any lesson or thought experiment
• Full-text search across the entire curriculum
• Light, dark, and tinted app icon
NO ADS. NO SUBSCRIPTIONS. NO NETWORK.
Liminal collects no data, serves no ads, and makes zero network calls. Every lesson, every philosopher, every quiz lives on your device. Buy it once. Own it forever.
WHO IT'S FOR
• Anyone who's always meant to read more philosophy
• Students preparing for or supplementing an introductory course
• Returning readers who want a structured guide back into the canon
• Curious minds looking for something better to fill the in-between moments of the day
Begin with Year 1, Lesson 1 — "What is Philosophy?" — or jump anywhere you like. Your progress is saved as you go.
Version 1.1 is a small release.
Once you are a few lessons in, Liminal may ask whether you would like to rate it on the App Store. The question only comes up after you finish something: a lesson marked complete, or a quiz worked through to the end. It appears at most once per version of the app, and dismissing it costs nothing.
There is also a new Rate Liminal row in the Progress tab, for anyone who would rather choose the moment themselves.
Nothing else has changed. The curriculum is the same 104 lessons across four years, with the same philosopher profiles, glossary, quizzes, and thought experiments, and Liminal remains entirely offline.
The developer, OMAR DANIEL GRAZIANO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- OMAR DANIEL GRAZIANO
- Size
- 2.7 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Liminal Full Access $9.99
- Copyright
- © 2026 Omar Graziano
