# 易经导航 vs 天威服務平台

The clearest difference is price: 天威服務平台 at Free against 易经导航's $1.99. 易经导航's advantage is update cadence (every 5 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

天威服務平台 is free to download; 易经导航 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

易经导航 ships an update every 5 weeks, 天威服務平台 every 3 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 易经导航 | 天威服務平台 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/iching-navigator/id493207167/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Paid | — |
| Size | 7 MB | 200 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lingchen](https://appshunter.io/developer/490063568) | [台灣新都興資訊股份有限公司](https://appshunter.io/developer/964745682) |

## What reviewers say

### 易经导航

[App page](https://appshunter.io/ios/app/iching-navigator/id493207167)

This app helps users learn and understand the I Ching through interactive practice. It offers guidance for life decisions by interpreting卦象, 卦辞, and 爻辞, and includes the "Jiao Shi I Ching" for deeper study.

**Highlights:** Learn I Ching principles, Interpret卦象, 卦辞, 爻辞, Guidance for life decisions, Includes Jiao Shi I Ching, Interactive learning

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 天威服務平台

[App page](https://appshunter.io/ios/app/id6478654897)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 易经导航 free?

易经导航 costs $1.99, with no in-app purchases.

### Is 天威服務平台 free?

天威服務平台 is free to download, with no in-app purchases.

### Do 易经导航 or 天威服務平台 have ads?

Neither 易经导航 nor 天威服務平台 shows ads.

### Which is updated more often, 易经导航 or 天威服務平台?

易经导航 ships an update every 5 weeks, and 天威服務平台 every 3 months. Most recently, 易经导航 was updated on November 6, 2026 and 天威服務平台 on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*