EpistIQ: Brain Puzzles
Philosophy, AI & Trivia
Free · In‑App Purchases
New subcategories, richer stats, weekly Gold questions, and improved Block Blast and Jigsaw. Build a knowledge habit across 24 topics.
EpistIQ is a daily knowledge quiz and brain puzzle app with four subjects, 24 subcategories, clear explanations, progress tracking, and two playable bonus games: Block Blast and Jigsaw.
WHY EPISTIQ
• Answer knowledge and trivia questions at your own pace.
• Read a clear explanation after every answer.
• Save questions to Favorites and review your History.
• Track Stats, streaks, badges, and category leaderboards.
• Build a learning habit across 24 focused subcategories.
24 SUBCATEGORIES IN FOUR SUBJECTS
PHILOSOPHY QUIZ: 6 SUBCATEGORIES
• Ethics and Moral Philosophy
• Logic and Epistemology
• Ancient Philosophy
• Modern and Existentialist Philosophy
• Political Philosophy
• Philosophy of Mind and Consciousness
SCIENCE QUIZ: 6 SUBCATEGORIES
• Physics
• Chemistry
• Biology
• Astronomy and Space
• Earth Science
• Mathematics
MEDICINE QUIZ: 6 SUBCATEGORIES
• Anatomy and Physiology
• Pharmacology
• Nutrition and Public Health
• Diseases and Conditions
• Medical History
• Genetics and Biotechnology
TECHNOLOGY QUIZ: 6 SUBCATEGORIES
• Web Development
• Mobile Development
• AI and Machine Learning
• Algorithms and Data Structures
• Cybersecurity
• Databases
PROGRESS FROM EASY TO PRO
Every subject and subcategory follows four difficulty levels: Easy, Medium, Hard, and Pro. Start with a short daily quiz, then work toward harder challenges. Free players can begin in every subject and unlock more questions with rewarded ads. EpistIQ Premium gives full access without ads.
LEARN FROM EVERY ANSWER
Each answer includes a clear explanation. History records what you answered, Favorites save questions to revisit, and Stats show progress by subject, subcategory, and difficulty. Streaks and badges give every session a clear goal.
TWO BONUS GAMES
• Block Blast: a relaxing block puzzle for a quick break.
• Jigsaw: 50 picture puzzles across Easy, Medium, Hard, Pro, and subscriber-only Gold levels, featuring real-world landmarks.
WEEKLY GOLD CONTENT
Subscribers receive fresh Gold questions every Sunday, including one question for each subcategory across the four subjects. Gold content adds a regular reason to return without changing the main progression.
COMPETE AT YOUR OWN PACE
The category leaderboard shows your rank and title as your unique correct answers grow. Notifications keep you informed about new content and announcements.
Available in English and French. Monthly and yearly auto-renewing subscriptions are available through your Apple ID. Manage or cancel subscriptions in your Apple ID account settings.
Terms of Use: https://aiguidia.com/epistiq/terms
Privacy Policy: https://aiguidia.com/epistiq/privacy_policy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Explore 24 knowledge subcategories, clearer progress tracking, improved Jigsaw and Block Blast games, fresh weekly Gold content, and smoother navigation.
The developer, IT KEYS LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- IT KEYS LLC
- Size
- 60.6 MB
- Category
- Trivia
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- English and French
- Age Rating
4+
- 4+
- Contains
Advertising
User-Generated Content
- In-App Purchases
Yes
- EpistIQ Smart Monthly $2.99
- EpistIQ Smart Yearly $19.99
- Copyright
- © Copyright 2026 IT KEYS LLC