# CHI Encyclopedia of Outer Space > Comprehensive offline encyclopedia of outer space with HD photos and badge rewards. (iPhone/iPad app by Good Spider, LLC.) - Source: https://appshunter.io/ios/app/chi-encyclopedia-of-outer-space/id1122571537 (this page in markdown: same URL + `.md`) - Developer: [Good Spider, LLC](https://appshunter.io/developer/1487595667) - Category: Education, Books - Price: Free with in-app purchases - Rating: 4.60/5 from 12 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 365 MB - Languages: American English - Released: 2016-09-02 - Data updated: 2026-08-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/chi-encyclopedia-of-outer-space/id1122571537/reviews.md ## What is CHI Encyclopedia of Outer Space? Explore the the world's Outer Space in thousands of hours of articles and pictures covering everything from Aberration of light to Zodiacal light. Our encyclopedia of Outer Space contains beautiful HD photos, simple organization and user interface, and the most comprehensive information about Outer Space you may want to know. Our Encyclopedia of Outer Space can be used by anyone. It can be a kid's encyclopedia to help them learn about outer space, or it can be an informative tool for anyone that is interested in Outer Space. We have worked diligently to select the best photos and create content that is engaging, easy to understand and relevant. CHI Encyclopedia of Outer Space looks stunning on both iPhone and iPad. We have also thought of a way to motivate you to read more, by collecting badges for reading different articles or collections of articles. We have also made the encyclopedia to be available entirely offline so you can read it on the go without WiFi connection (in the car or on a plane). CHI Encyclopedia of Outer Space — Outer Space included from A-Z — Neat organization and beautiful HD photos — Relevant information that is nicely written — Great for all ages — Available offline, read it on the go Simple, intuitive and elegant. With CHI Encyclopedia of Outer Space, you can learn everything about Outer Space. ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Full Version | $2.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/chi-encyclopedia-of-outer-space/id1122571537/reviews.md ### 3/5 — Needs full upgrade for most articles *2023-01-26* Please fix ## Frequently asked questions about CHI Encyclopedia of Outer Space ### 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. ## Version history (last 1 release) ### 1.0.2 — 2016-09-02 This app has been updated by Apple to display the Apple Watch app icon. ## Apps similar to CHI Encyclopedia of Outer Space | App | Rating | Price | Category | | --- | --- | --- | --- | | [VR Dino Jurassic Encyclopedia](https://appshunter.io/ios/app/vr-dino-jurassic-encyclopedia/id1581782903) | 4.5 (31) | Free | Education | | [Space Photos: Explore Universe](https://appshunter.io/ios/app/space-photos-explore-universe/id1366588176) | 4.9 (219) | Free | Education | | [Zoology Dictionary - Offline](https://appshunter.io/ios/app/zoology-dictionary-offline/id1489330035) | 3.8 (5) | Free | Education | | [Atlas Earth: Explore the World](https://appshunter.io/ios/app/atlas-earth-explore-the-world/id6741566722) | 4.3 (20) | Free | Education | | [Kids Encyclopedia with AI](https://appshunter.io/ios/app/kids-encyclopedia-with-ai/id1502045040) | — | Free | Education | ## More apps by Good Spider, LLC - [CHI Encyclopedia of Airliners](https://appshunter.io/ios/app/chi-encyclopedia-of-airliners/id1036268445) - [Encyclopedia of Animals](https://appshunter.io/ios/app/encyclopedia-of-animals/id1082571138) - [CHI Encyclopedia of Music](https://appshunter.io/ios/app/chi-encyclopedia-of-music/id1122036466) - [Encyclopedia of Cats](https://appshunter.io/ios/app/encyclopedia-of-cats/id1122519824) - [Encyclopedia of Dogs](https://appshunter.io/ios/app/encyclopedia-of-dogs/id1122543308) - [Greek Mythology](https://appshunter.io/ios/app/greek-mythology/id1122556787) All apps by Good Spider, LLC: https://appshunter.io/developer/1487595667 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*