Needs full upgrade for most articles
Please fix
Free
In-App Purchases
About
An offline encyclopedia with thousands of articles and HD photos covering all aspects of outer space. Earn badges for reading and explore topics from A-Z with a simple, elegant interface.
✓Thousands of articles and HD photos
✓Comprehensive outer space information
✓Simple organization and UI
✓Offline access
✓Badge collection for reading
✓Available on iPhone and iPad
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What's New in Encyclopedia of Outer Space
26.9.29
September 29, 2026
Outer Space now uses a consistent name on your Home Screen and inside the app. Choose five free articles as a new reader, save favorites, and continue where you left off. Find clearer upgrade options and three-day Premium trials for eligible subscribers. Existing article access and eligible purchases remain protected.
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Subscriptions & In-App Purchases
$2.99
Full Version
The full version unlocks all the articles.
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FAQ
What is CHI Encyclopedia of Outer Space?
CHI Encyclopedia of Outer Space is a free educational app that provides comprehensive information about outer space through articles and HD photos. It is designed to be engaging and easy to understand for all ages.
Can I use CHI Encyclopedia of Outer Space offline?
Yes, the encyclopedia is available entirely offline. This allows you to read about outer space on the go without needing a WiFi connection, making it convenient for travel.
Does CHI Encyclopedia of Outer Space have ads?
No, CHI Encyclopedia of Outer Space does not contain advertisements. The app is free to download and use, with optional in-app purchases.
How does CHI Encyclopedia of Outer Space help users learn?
It offers thousands of articles and HD photos covering outer space topics from A-Z. The app also includes a badge collection system to motivate users to read more and track their learning progress.
What devices is CHI Encyclopedia of Outer Space compatible with?
CHI Encyclopedia of Outer Space is compatible with iPhone, iPad, and iPod. It is designed to look stunning on both iPhone and iPad devices.
What is the age rating for CHI Encyclopedia of Outer Space?
The app has an age rating of 4+, making it suitable for children and adults interested in learning about space.
How often is CHI Encyclopedia of Outer Space updated?
The app was last updated on September 2, 2016, with version 1.0.2. Further updates may be released to improve content or functionality.
What are the in-app purchases for CHI Encyclopedia of Outer Space?
While the app is free, it offers in-app purchases. Specific details about these purchases, such as content unlocks or features, are not provided in the description.
