# I Ching vs Medical Coding CPC Prep

The clearest difference is ads: Medical Coding CPC Prep at none against I Ching's shown. I Ching's advantage is update cadence (every 5 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. I Ching sells 1 one-off in-app purchase and Medical Coding CPC Prep sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

I Ching ships an update every 5 days, Medical Coding CPC Prep every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | I Ching | Medical Coding CPC Prep |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 114 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [zhenyu song](https://appshunter.io/developer/1721282851) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## What reviewers say

### I Ching

[App page](https://appshunter.io/ios/app/i-ching-book-of-changes/id6760681109)

Explore the ancient wisdom of the I Ching with detailed explanations and audio for all 64 hexagrams. This app offers a gateway to understanding Chinese philosophy, decision-making, and culture through its systematic approach to change.

**Highlights:** 64 hexagrams with audio explanations, Line-by-line commentary, Plain-language and modern interpretations, Support for 9 languages, Auto-play and lock-screen controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Medical Coding CPC Prep

[App page](https://appshunter.io/ios/app/medical-coding-cpc-prep/id6778985457)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CPC Coding Weekly | $6.99 | per 7 days |
| CPC Coding Monthly | $16.99 | per month |
| CPC Coding Yearly | $39.99 | per year |
| CPC Coding Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is I Ching free?

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

### Is Medical Coding CPC Prep free?

Medical Coding CPC Prep is free to download, with in-app purchases available.

### Do I Ching or Medical Coding CPC Prep have ads?

I Ching shows ads; Medical Coding CPC Prep does not.

### Which is updated more often, I Ching or Medical Coding CPC Prep?

I Ching ships an update every 5 days, and Medical Coding CPC Prep every 3 months. Most recently, I Ching was updated on October 31, 2026 and Medical Coding CPC Prep on October 31, 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.*