# 亦卦 vs 问易 Yi

The clearest difference is rating: 亦卦 at 5.0 against 问易 Yi's 1.0. 亦卦 also leads on ratings volume (4 vs 1) and iOS requirement (16.0 vs 18.0). 问易 Yi's advantage is update cadence (every 3 days vs every 4 months) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 亦卦 sells 3 one-off in-app purchases and 问易 Yi sells 7 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

亦卦 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

亦卦 ships an update every 4 months, 问易 Yi every 3 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 亦卦 | 问易 Yi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id1508889279/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/yi/id6774650739/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 36 MB | 87 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [嘉胜 陈](https://appshunter.io/developer/1508884749) | [OneSource AI PTE. LTD.](https://appshunter.io/developer/1884215997) |

## What reviewers say

### 亦卦

[App page](https://appshunter.io/ios/app/id1508889279)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小布施 | $0.99 | one-time |
| 中布施 | $12.99 | one-time |
| 大布施 | $109.99 | one-time |


### 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 (7)**

| 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 |
| 积分 × 30 | $0.99 | one-time |
| 积分 × 120 | $2.99 | one-time |
| 积分 × 360 | $6.99 | one-time |


## Frequently asked questions

### Is 亦卦 free?

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

### Is 问易 Yi free?

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

### Which has better reviews, 亦卦 or 问易 Yi?

亦卦 is rated higher. 亦卦 averages 5.0 out of 5 from 4 ratings, while 问易 Yi averages 1.0 from 1 ratings.

### Do 亦卦 or 问易 Yi have ads?

Neither 亦卦 nor 问易 Yi shows ads.

### Which is updated more often, 亦卦 or 问易 Yi?

亦卦 ships an update every 4 months, and 问易 Yi every 3 days. Most recently, 亦卦 was updated on October 15, 2026 and 问易 Yi on October 14, 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.*