# HyunmuDongja vs Koiing

The clearest difference is ads: Koiing at none against HyunmuDongja's shown. Koiing also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. HyunmuDongja sells 8 one-off in-app purchases and Koiing sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

HyunmuDongja ships an update every 3 weeks, Koiing every 2 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HyunmuDongja | Koiing |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 38 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [youngchan chang](https://appshunter.io/developer/1783148851) | [Kortress](https://appshunter.io/developer/1817788565) |

## What reviewers say

### HyunmuDongja

[App page](https://appshunter.io/ios/app/hyunmudongja/id6748669503)

This spiritual companion uses AI and nature imagery to make ancient wisdom like Saju and the Book of Changes accessible. It offers private consultations, intuitive readings, and planning insights to help you understand yourself and your future.

**Highlights:** AI-powered Saju and Book of Changes readings, Private worry consultations, Nature-inspired explanations, Intuitive future readings through images, Yuk-Hyo for planning insights, Self-reflection and emotional organization

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 grains | $0.49 | one-time |
| 30 grains | $1.99 | one-time |
| special grains | $2.99 | one-time |
| 50 grains | $2.99 | one-time |
| 100 grains | $6.99 | one-time |
| 200 grains | $12.99 | one-time |
| 300 grains | $19.99 | one-time |
| 500 grains | $34.99 | one-time |


### Koiing

[App page](https://appshunter.io/ios/app/koiing/id6752791489)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,000 Credits | $3.99 | one-time |
| 2,000 credits | $7.99 | one-time |
| 20,000 Credits | $69.99 | one-time |


## Frequently asked questions

### Is HyunmuDongja free?

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

### Is Koiing free?

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

### Do HyunmuDongja or Koiing have ads?

HyunmuDongja shows ads; Koiing does not.

### Which is updated more often, HyunmuDongja or Koiing?

HyunmuDongja ships an update every 3 weeks, and Koiing every 2 days. Most recently, HyunmuDongja was updated on October 30, 2026 and Koiing 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.*