Enchiridion: MicroLearning App
Science • History • Philosophy
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Learn anything. Remember it for life.
Enchiridion is a subscription app built for people who want to keep what they learn. Auto-renewing subscriptions unlock the full catalog of learning paths, deep-dive articles, spaced-repetition study sessions, sync, and progress tools.
SCIENCE-BACKED LEARNING
Built on FSRS (Free Spaced Repetition Scheduler), Enchiridion schedules review right before you're likely to forget. The goal is long-term retention, not short-term cramming.
INCLUDED WITH SUBSCRIPTION
Your subscription unlocks:
• Full access to structured learning paths
• Deep-dive articles that explain the "why" behind the facts
• Adaptive spaced-repetition study sessions
• Progress tracking, streaks, and daily quests
• iCloud sync across your devices
TOPICS YOU CAN STUDY
Explore practical and intellectual domains such as:
• Personal Finance & Investing
• Health & Longevity
• Stoic Philosophy
• Productivity & Focus
• Relationships & Communication
• Career & Business
• And more
WHO IT'S FOR
• Lifelong learners building durable knowledge
• Professionals expanding into new domains
• Students who want better retention
• Anyone tired of forgetting what they just learned
The name "Enchiridion" comes from the Greek word for handbook: a practical guide you carry with you. That's the goal here: a personal system for building useful knowledge that sticks.
SUBSCRIPTION NOTICE
• Enchiridion offers auto-renewing subscriptions for full access
• Payment is charged to your Apple ID at confirmation of purchase
• Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period
• You can manage or cancel your subscription in your App Store account settings
• Privacy Policy: https://enchiridion.io/privacy
• Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Public service terms: https://enchiridion.io/terms
What’s New in Version 1.3.4
Redesigned onboarding with personalized learning paths and daily goals
Faster, smoother study sessions and navigation
Improved subscription, sign-in, and restore flows
More reliable progress syncing and session recovery
Enhanced spaced repetition scheduling
Bug fixes and performance improvements
The developer, Zachary Highley-Gergel, 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 Linked to You
The following data may be collected and linked to your identity:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Zachary Highley-Gergel
- Size
- 111.4 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
Infrequent
Cartoon or Fantasy Violence
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Guns or Other Weapons
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Premium Annual $99.99
- Premium Monthly $12.99
- Copyright
- © 2026 Zach Highley LLC