Comparison

CHM+ vs CHM Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CHM+

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
Read full description

CHM+ focuses on enhancing the reading experience of CHM documents on the iOS platform. Main features: - Quick document import: Supports importing CHM documents from local storage and iCloud. - Fast opening of extremely large files. - Quick chapter switching: Supports switching by table of contents and quick switching in the order of the table of contents. - Multi-screen collaboration: Available for iPad. - Support for multiple encoding types. - A smooth reading experience.

About

CHM Reader

This app provides a streamlined and efficient way to read CHM and TXT documents. It offers features like smart table of contents navigation, full-text search, adjustable font sizes, and night mode for a comfortable reading experience.

Highlights
  • Professional CHM format support
  • Smart Table of Contents navigation
  • Full-text search
  • Adjustable font size
  • Night mode
  • Bookmark collection
Features
Read full description

CHM Reader & Viewer - Professional CHM Document Reader A streamlined and efficient CHM document reader that provides you with a smooth and comfortable reading experience. Key Features: • Professional CHM Format Support - Perfect compatibility with various CHM documents, supporting multiple encoding formats • Smart Table of Contents Navigation - One-tap jump, quick content positioning • Powerful Search Function - Full-text search, instantly find the information you need • Personalized Reading - Font size adjustment, night mode • Bookmark Collection - Save important sections, offline access Designed specifically for efficient reading, making your document browsing more convenient. How to Use: After opening the app, click "+" to add CHM files and start reading. Encoding Support: Built-in encoding format toggle button in the reader menu, supports GBK, UTF-8 and other encodings, easily solve garbled text issues. Subscription Options: • Offers weekly and annual memberships, lifetime membership • Payment will be charged to your iTunes account • Auto-renewal occurs within 24 hours before subscription expires • Manage or cancel subscriptions anytime in account settings Designed specifically for efficient reading, making your document browsing more convenient. Terms of Service: https://chmreader.xzonesoft.com/terms.html Privacy Policy: https://chmreader.xzonesoft.com/privacy.html Contact Us: support@xzonesoft.com

Screenshots

CHM+4 screens
CHM Reader4 screens

Verdict

The call

The clearest difference is rating: CHM Reader at 5.0 against CHM+'s 3.0. CHM Reader also leads on ads (none vs shown). CHM+'s advantage is review sentiment (83% vs 43%). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CHM+ sells 1 one-off in-app purchase and CHM Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CHM Reader holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 83% of CHM+'s written reviews are positive against 43% of CHM Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

CHM+ ships an update every 6 weeks, CHM Reader every 3 weeks. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 7 level
CHM+ versus CHM Reader: the parameters behind the verdict, then further details
ParameterCHM+CHM Reader
PriceFreeFree
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews83.3% of reviews — better42.9% of reviews
Number of ratings2 — better1
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better16
Further details — not scored
Size16 MB19 MB
Age rating4+4+
Developer俊锋 仝灿耿 陈

Customer experience

CHM+

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

CHM Reader

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

In-app purchases

1 purchases

CHM+

One-time1
  • CHM Pro$4.99
3 purchases

CHM Reader

Subscriptions2
  • Weekly members$1.997 Days
  • Annual Subscription$4.991 Year
One-time1
  • Lifetime Membership$6.99

Questions

Is CHM+ free?
CHM+ is free to download, with in-app purchases available.
Is CHM Reader free?
CHM Reader is free to download, with in-app purchases available.
Which has better reviews, CHM+ or CHM Reader?
CHM Reader is rated higher. CHM+ averages 3.0 out of 5 from 2 ratings, while CHM Reader averages 5.0 from 1 ratings.
Do CHM+ or CHM Reader have ads?
CHM+ shows ads; CHM Reader does not.
Which is updated more often, CHM+ or CHM Reader?
CHM+ ships an update every 6 weeks, and CHM Reader every 3 weeks. Most recently, CHM+ was updated on September 26, 2026 and CHM Reader on September 25, 2026.

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