# 爱书猫 vs CHM+

The clearest difference is in-app purchases: 爱书猫 at none against CHM+'s 1. 爱书猫 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. CHM+ sells 1 one-off in-app purchase. 爱书猫 asks for nothing beyond the download.

爱书猫 ships an update every 2 months, CHM+ every 6 weeks. The most recent releases landed on September 20, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 爱书猫 | CHM+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 16 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Qingdao micron Network Technology Co., Ltd](https://appshunter.io/developer/1543158517) | [俊锋 仝](https://appshunter.io/developer/1209824000) |

## What reviewers say

### 爱书猫

[App page](https://appshunter.io/ios/app/id1551571843)

**Features:** Vision Pro support

**In-app purchases:** none


### CHM+

[App page](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168)

This app provides a streamlined way to read CHM documents on iOS devices. It offers quick import from local storage and iCloud, fast opening of large files, and efficient chapter navigation. Enjoy a smooth reading experience with support for multiple encodings.

**Highlights:** Quick document import (local storage, iCloud), Fast opening of large CHM files, Table of contents chapter switching, Multi-screen collaboration on iPad, Support for multiple encoding types, Smooth reading experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CHM Pro | $4.99 | one-time |


## Frequently asked questions

### Is 爱书猫 free?

爱书猫 is free to download, with no in-app purchases.

### Is CHM+ free?

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

### Do 爱书猫 or CHM+ have ads?

CHM+ shows ads; 爱书猫 does not.

### Which is updated more often, 爱书猫 or CHM+?

爱书猫 ships an update every 2 months, and CHM+ every 6 weeks. Most recently, 爱书猫 was updated on September 20, 2026 and CHM+ on September 26, 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.*