# 10 in 1 The World of Unsolved Secrets > A collection of ten categories of unexplained mysteries and phenomena. (iPhone/iPad app by 春红 徐.) - Source: https://appshunter.io/ios/app/10-in-1the-world-of-unsolved-secrets/id479822181 (this page in markdown: same URL + `.md`) - Developer: [春红 徐](https://appshunter.io/developer/383265975) - Category: Books, Education - Price: Free - Rating: 2.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 196 MB - Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan) - Released: 2011-11-18 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/10-in-1the-world-of-unsolved-secrets/id479822181/reviews.md ## What is [10 in 1]The World of Unsolved Secrets? The world mystery, that people with existing technology means, or according to the normal logic thinking, reasoning that the world can't explain natural, astronomy, the phenomenon such as history. Ten World of Unsolved Secrets(HD): 1,Treasure Mystery. 2,Earth mysteries. 3,The mystery of ancient civilization. 4,History hanging eucalyptus. 5,Eucalyptus odd celebrity. 6,Mystery of human. 7,Prehistoric Quest. 8,Art mystery. 9,Magic Universe. 10,Natural mystery. The function of software: 1, iOS5 support. 2, each page preview picture, click on the picture directly into to want to see the page 3. The same page shows the page 4, zoom-in (thumb and index finger operation) 5, support print directly 6, support increased save, fast browsing bookmarks 7, support to send mail books figure and text information ## Key features - Ten categories of mysteries - Treasure, Earth, and ancient civilization mysteries - History and celebrity enigmas - Human and prehistoric quests - Art and magic universe topics - Natural mysteries - Zoom and bookmarking ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/10-in-1the-world-of-unsolved-secrets/id479822181/reviews.md ### 1/5 — Only Chinese *2011-12-03* Can't seem to change although says Chinese &English ! ## Frequently asked questions about [10 in 1]The World of Unsolved Secrets ### What kind of mysteries does The World of Unsolved Secrets cover? The World of Unsolved Secrets covers ten categories of mysteries, including treasure, Earth, ancient civilizations, history, celebrities, human mysteries, prehistoric quests, art, the magic universe, and natural phenomena. ### Can I zoom in on content in The World of Unsolved Secrets? Yes, the app supports zoom-in functionality using thumb and index finger gestures, allowing you to get a closer look at the content. ### Does The World of Unsolved Secrets have ads? No, The World of Unsolved Secrets is ad-free, providing an uninterrupted experience for users. ### What devices is The World of Unsolved Secrets compatible with? The World of Unsolved Secrets is compatible with iPhone, iPad, and iPod devices. ### How often is The World of Unsolved Secrets updated? The app was last updated on July 9, 2016, with version 12.5. It has not received updates since then. ### What is the age rating for The World of Unsolved Secrets? The World of Unsolved Secrets has an age rating of 4+, making it suitable for younger audiences interested in mysteries. ### Can I save my progress or favorite pages in The World of Unsolved Secrets? Yes, the software supports increased saving and fast browsing of bookmarks, allowing you to easily return to pages you want to revisit. ### What is the user rating for The World of Unsolved Secrets? The World of Unsolved Secrets has a rating of 2.0 stars based on 1 rating. ## Version history (last 5 releases) ### 12.5 — 2016-07-09 This app has been updated by Apple to display the Apple Watch app icon. Support iOS9.0 ### 12.0 — 2015-12-14 +Support iOS9 +Correct some words. ### 11.1 — 2014-10-20 support iOS8.0 ### 9.4 — 2014-08-03 Correct some content’s words. ### 9.3 — 2014-08-01 +Fix some content bugs ## Apps similar to [10 in 1]The World of Unsolved Secrets | App | Rating | Price | Category | | --- | --- | --- | --- | | [中原术数类专著古籍](https://appshunter.io/ios/app/id1634729003) | — | Free | Books | | [心经经典版](https://appshunter.io/ios/app/id1400693504) | 4.9 (7) | Free | Books | | [中华经典古籍合集: 阅读文言文国学典籍的电子书](https://appshunter.io/ios/app/id1529766681) | 4.7 (45) | Free | Books | | [必读经典藏书-处世绝学](https://appshunter.io/ios/app/id1135386904) | 4.8 (4) | Free | Books | | [書海](https://appshunter.io/ios/app/id806037261) | 4.9 (80) | Free | Books | | [淘故事-暖心故事会](https://appshunter.io/ios/app/id1483297217) | — | $0.99 | Books | ## More apps by 春红 徐 - [壹生必讀的60本書(簡繁體)](https://appshunter.io/ios/app/60/id383570977) - [歷代 名豔 女子 郃集(4本簡繁版)](https://appshunter.io/ios/app/4/id387318648) - [Residential and business with the wind](https://appshunter.io/ios/app/residential-and-business-with-the-wind/id390870704) - [Chess was mahjong thousands revelation (13 this Jane numerous version)](https://appshunter.io/ios/app/chess-was-mahjong-thousands-revelation-13-this-jane-numerous-version/id391335186) - [管理者必備精品書籍 200本](https://appshunter.io/ios/app/200/id393072937) - [《紅樓夢》情愛解碼(9本簡繁)](https://appshunter.io/ios/app/9/id393293539) All apps by 春红 徐: https://appshunter.io/developer/383265975 --- *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 2026-06-10.*