# 风水知识|风水罗盘大全 vs 问易 Yi

The clearest difference is price: 问易 Yi at Free against 风水知识|风水罗盘大全's $1.99. 问易 Yi also leads on update cadence (every 3 days vs every 91 months). 风水知识|风水罗盘大全's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 18.0). On rating, ratings volume, ads and device support there is nothing between them.

问易 Yi is free to download; 风水知识|风水罗盘大全 costs $1.99 up front. 问易 Yi sells 8 in-app purchases, starting at $5.99 per month. 风水知识|风水罗盘大全 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 1.0 for 风水知识|风水罗盘大全 against 1.0 for 问易 Yi. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

风水知识|风水罗盘大全 ships an update every 91 months, 问易 Yi every 3 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 风水知识|风水罗盘大全 | 问易 Yi |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1152956856/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/yi/id6774650739/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 91 months | **Every 3 days** |
| Monetization | Paid | **Freemium** |
| Size | 38 MB | 102 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [强 马](https://appshunter.io/developer/508741531) | [OneSource AI PTE. LTD.](https://appshunter.io/developer/1884215997) |

## What reviewers say

### 风水知识|风水罗盘大全

[App page](https://appshunter.io/ios/app/id1152956856)

This app provides comprehensive knowledge about Feng Shui, including its origins, principles, and practical applications. It also offers detailed explanations and usage guides for the Feng Shui compass (Luopan).

**Highlights:** Feng Shui knowledge encyclopedia, Luopan usage instructions, Detailed Luopan layer explanations, Feng Shui's impact on life, Historical development of Feng Shui, Practical application tips

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

**In-app purchases:** none


### 问易 Yi

[App page](https://appshunter.io/ios/app/yi/id6774650739)

This app serves as a companion for studying the I Ching and a private journal for decision-making. It helps users clarify questions, reflect on situations, and review past decisions without predicting outcomes. It offers access to classic texts, commentary, and optional personal assessments.

**Highlights:** Study 64 hexagrams with source text and commentary, Private decision-reflection journaling, On-device AI assistance, Optional self-report personality assessments, End-to-end encrypted sync, Data export and deletion options, Multilingual study support

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yi Plus — Monthly | $5.99 | per month |
| Yi Master — Monthly | $12.99 | per month |
| Yi Plus — Yearly | $49.99 | per year |
| Yi Master — Yearly | $99.99 | per year |
| 30 Yi Credits | $0.99 | one-time |
| 10 Yi Credits | $0.99 | one-time |
| 120 Yi Credits | $2.99 | one-time |
| 360 Yi Credits | $6.99 | one-time |


## Frequently asked questions

### Is 风水知识|风水罗盘大全 free?

风水知识|风水罗盘大全 costs $1.99, with no in-app purchases.

### Is 问易 Yi free?

问易 Yi is free to download, with in-app purchases available.

### Which has better reviews, 风水知识|风水罗盘大全 or 问易 Yi?

风水知识|风水罗盘大全 and 问易 Yi are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 风水知识|风水罗盘大全 or 问易 Yi have ads?

Neither 风水知识|风水罗盘大全 nor 问易 Yi shows ads.

### Which is updated more often, 风水知识|风水罗盘大全 or 问易 Yi?

风水知识|风水罗盘大全 ships an update every 91 months, and 问易 Yi every 3 days. Most recently, 风水知识|风水罗盘大全 was updated on October 26, 2026 and 问易 Yi on October 24, 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.*