# Ovidius — Book of Changes

> Digital collection of ancient Chinese philosophical texts, including the I Ching. (iPhone/iPad app by Yu Tse Wu.)

- Source: https://appshunter.io/ios/app/ovidius/id1070104512 (this page in markdown: same URL + `.md`)
- Developer: [Yu Tse Wu](https://appshunter.io/developer/1032252133)
- Category: Books, Reference
- Price: $2.99
- Age rating: 4+
- Requires: iOS 15.0 · 5 MB
- Languages: American English
- Released: 2017-06-22
- Data updated: 2026-09-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ovidius/id1070104512/reviews.md

## What is Ovidius?

「大哉乾元，萬物資始，乃統天。雲行雨施，品物流形，大明終始，六位時成，時乘六龍以御天。乾道變化，各正性命，保合大和，乃利貞。首出庶物，萬國咸寧。」〈彖傳〉

「天行健，君子以自強不息。」〈象傳〉

「天尊地卑，乾坤定矣。卑高以陳，貴賤位矣。動靜有常，剛柔斷矣。方以類聚，物以羣分，吉凶生矣。在天成象，在地成形，變化見矣。」〈繫辭傳〉

「天地定位，山澤通氣，雷風相薄，水火不相射。八卦相錯，數往者順，知來者逆。是故易逆數也。」〈說卦傳〉

「有天地，然后萬物生焉。盈天地之間者，唯萬物，故受之以屯；屯者盈也，屯者物之始生也。」〈序卦傳〉

「乾剛，坤柔，比樂師憂。臨觀之義，或與或求。屯見而不失其居，蒙雜而著。震，起也，艮，止也。損、益，盛衰之始也。」〈雜卦傳〉

「元者，善之長也；亨者，嘉之會也；利者，義之和也；貞者，事之幹也。君子體仁足以長人，嘉會足以合禮，利物足以和義，貞固足以幹事。君子行此四德者，故曰乾、元、亨、利、貞。」〈文言傳〉

## Key features

- I Ching text
- Commentaries included
- Ancient Chinese philosophy
- Foundational concepts
- Cosmology and ethics


## Frequently asked questions about Ovidius

### What is Ovidius?

Ovidius is a paid application that provides access to ancient Chinese philosophical texts, most notably the I Ching and its associated commentaries. It aims to make these foundational writings accessible on mobile devices.

### What content is included in Ovidius?

Ovidius features classic Chinese philosophical texts, including extensive excerpts from the I Ching (Book of Changes) and its important commentaries like the Tuan Zhuan, Xiang Zhuan, and Xi Ci Zhuan. It also includes sections from other key texts like the Guan Gua and Za Gua.

### What is the price of Ovidius?

Ovidius is a paid app priced at $2.99. This one-time purchase grants you access to the full content of the application without any additional subscription fees or in-app purchases.

### What devices does Ovidius support?

Ovidius is available for iOS devices, including iPhone, iPad, and iPod. It is designed to run on these Apple platforms.

### How often is Ovidius updated?

The latest version of Ovidius is 1.2.0, which was last updated on December 21, 2025. While specific update frequency isn't detailed, this indicates ongoing maintenance and potential future improvements.

### What is the age rating for Ovidius?

Ovidius has an age rating of 4+. This suggests that the content is generally suitable for young children and does not contain mature themes.

### Does Ovidius have ads?

No, Ovidius does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### What do users think of Ovidius?

Based on available data, Ovidius has received a perfect rating of 5.0 stars from one review. This suggests a highly positive user sentiment for the app.

## Version history (last 5 releases)

### 1.2.0 — 2025-12-21

• 理論學說 - 卦變

### 1.1.9 — 2024-12-21

• 改善使用者搜尋體驗

### 1.1.8 — 2024-04-29

• 軟體開發套件版本更新

### 1.1.7 — 2023-12-22

• 改善使用者網頁瀏覽體驗

### 1.1.6 — 2023-01-30

• 關鍵字搜尋 - 卦辭、爻辭、彖辭、象辭

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## More apps by Yu Tse Wu

- [Specus](https://appshunter.io/ios/app/specus/id1032252134)
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All apps by Yu Tse Wu: https://appshunter.io/developer/1032252133

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*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 2026-09-04.*