# 子衿听书 vs Omnia Reader

The clearest difference is iOS requirement: 子衿听书 at 16.0 against Omnia Reader's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 子衿听书 sells 2 in-app purchases, starting at $9.99 per year and Omnia Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 子衿听书 | Omnia Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 30 MB | 9 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Feynman Information Technology Co., Ltd.](https://appshunter.io/developer/1444983702) | [LiChuan Lin](https://appshunter.io/developer/1895785594) |

## What reviewers say

### 子衿听书

[App page](https://appshunter.io/ios/app/txtpdfepubai/id6752794227)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包年畅听 | $9.99 | per year |
| 终身购买 | $29.99 | one-time |


### Omnia Reader

[App page](https://appshunter.io/ios/app/omnia-reader/id6784663352)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $5.99 | one-time |


## Frequently asked questions

### Is 子衿听书 free?

子衿听书 is free to download, with in-app purchases available.

### Is Omnia Reader free?

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

### Do 子衿听书 or Omnia Reader have ads?

Neither 子衿听书 nor Omnia Reader shows ads.

### Which is updated more often, 子衿听书 or Omnia Reader?

子衿听书 ships an update fortnightly, and Omnia Reader fortnightly. Most recently, 子衿听书 was updated on October 6, 2026 and Omnia Reader on October 25, 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.*