# Readingo vs CHM+

The clearest difference is rating: Readingo at 4.8 against CHM+'s 3.0. Readingo also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Readingo sells 1 one-off in-app purchase and CHM+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Readingo holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Readingo has 117 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 93% of Readingo's written reviews are positive against 83% of CHM+'s.

Readingo ships an update weekly, CHM+ every 6 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Readingo | CHM+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (117 ratings)](https://appshunter.io/ios/app/readingo/id6502330235/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168/reviews) |
| Number of ratings | **117** | 2 |
| Positive reviews | **93.1% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 53 MB | 16 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Idee Technology Co., Ltd.](https://appshunter.io/developer/1447935998) | [俊锋 仝](https://appshunter.io/developer/1209824000) |

## What reviewers say

### Readingo

[App page](https://appshunter.io/ios/app/readingo/id6502330235)

This app is a versatile reader supporting numerous file formats including TXT, EPUB, MOBI, and PDF. It offers extensive customization for reading themes, fonts, and bookshelf styles, along with advanced features like highlighting, notes, and audiobook support.

**Highlights:** Supports TXT, EPUB, MOBI, PDF, and more, Opens compressed files (RAR, ZIP), Comprehensive category management, Extensive formatting and page-turning options, 24 built-in reading themes, Highlighting and notes, Audiobook support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reading Pro | $9.99 | one-time |


### 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 Readingo free?

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

### Is CHM+ free?

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

### Which has better reviews, Readingo or CHM+?

Readingo is rated higher. Readingo averages 4.8 out of 5 from 117 ratings, while CHM+ averages 3.0 from 2 ratings.

### Do Readingo or CHM+ have ads?

CHM+ shows ads; Readingo does not.

### Which is updated more often, Readingo or CHM+?

Readingo ships an update weekly, and CHM+ every 6 weeks. Most recently, Readingo was updated on October 19, 2026 and CHM+ on October 12, 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.*