Arca Curiosa
Learn, explore & be curious
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Follow your curiosity with Arca Curiosa: 2,500+ free questions across 15 categories, no ads, and a core learning library you can use offline. Start exploring without creating an account.
Arca Curiosa is built for learning, not competitive gameplay. Explore science, history, art, technology, and more through thoughtful questions, clear explanations, and structured learning paths. Take your time, understand the ideas, and return to what you want to remember.
2,500+ FREE QUESTIONS. NO ADS.
The core library is free to explore, with no advertising to interrupt your learning. Discover subjects that interest you through illustrated questions, matching activities, ordering exercises, and typed answers.
LEARN THE WHY
Every answer comes with an explanation, helping you understand the idea behind the question and learn from mistakes.
GO DEEPER
Follow Deep Dive learning paths through Discover, Explore, Challenge, and Mastery. Unlock stages as you progress, and pause and resume untimed sessions whenever you need to.
LEARN AT YOUR OWN PACE
Choose a short Quick Mix or a longer session. Study without a timer, or use optional timed practice to work toward your personal best.
KEEP DISCOVERIES FRESH
Revisit missed answers, bookmark interesting questions, and save unfamiliar material for another look. Spaced review brings questions back over time.
SEE YOUR PROGRESS
Track questions explored, correct answers, categories visited, and active learning days. Earn collectible achievement patches as you explore and build your knowledge.
LEARN OFFLINE
The core library works offline. Download additional topic packs while connected, then study them offline too. Choose light or dark mode to suit your reading preferences.
EXPLORE MORE WITH PLUS
An optional Plus subscription gives you access to additional downloadable topics. The 2,500+ questions in the core library remain free. You can subscribe to Plus, restore purchases, and use Plus topics without creating an Arca Curiosa account. An internet connection is needed to download topics. An optional account enables progress syncing and Circles.
Follow your curiosity. Discover something new.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.arcacuriosa.com/privacy
• Learn in Brazilian Portuguese, English, or Spanish. Choose your language during onboarding or in Settings.
• Earn new patches for distinct correct answers and learning days. Milestones you’ve already reached appear after your next completed session.
• Enjoy clearer topic cards and navigation on small screens, and see progress when Browse downloads topics automatically.
The developer, Cristian Ferrier, 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:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Cristian Ferrier
- Size
- 114.8 MB
- Category
- Education
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 2 more
- English, Portuguese, Spanish
- Age Rating
13+
- 13+
- Infrequent
Realistic Violence
Mature or Suggestive Themes
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Guns or Other Weapons
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Arca Curiosa Plus Family $39.99
- Arca Curiosa Plus Annual $24.99
- Arca Curiosa Plus $2.99
- Copyright
- © 2026 Cristian Ferrier
