# ChmPlus Lite vs i

The clearest difference is rating: i at 5.0 against ChmPlus Lite's 3.6. i also leads on ads (none vs shown). ChmPlus Lite's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (monthly vs every 4 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

i holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: ChmPlus Lite has 11 ratings behind it against 1, so its average is the more settled of the two.

ChmPlus Lite ships an update monthly, i every 4 months. The most recent releases landed on October 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ChmPlus Lite | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (11 ratings)](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/i-attend-self-check-in/id1421201302/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 48.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 13 MB | 22 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [兰桂 吴](https://appshunter.io/developer/433671404) | [TNETIC, Inc.](https://appshunter.io/developer/982489937) |

## What reviewers say

### ChmPlus Lite

[App page](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952)

This app allows you to read and manage various document formats, including CHM and EPUB, on your iPhone or iPad. It offers features like highlighting, bookmarking, searching, and file transfer. You can also manage files, create text documents, and save images.

**Highlights:** Read CHM and EPUB files, Highlight, bookmark, and annotate, Full-text search, Wi-Fi and iTunes file transfer, Passcode lock for files, Support for multiple document and archive formats

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

**In-app purchases:** none


### i

[App page](https://appshunter.io/ios/app/i-attend-self-check-in/id1421201302)

This app allows event attendees to self-check in and out using their mobile devices. It connects with a cloud-based platform for attendance tracking, name badge creation, and certificate generation.

**Highlights:** Self check-in/out, Event QR code scanning, Event PIN entry, Attendance tracking, Name badge creation, Certificate generation

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

**In-app purchases:** none


## Frequently asked questions

### Is ChmPlus Lite free?

ChmPlus Lite is free to download, with no in-app purchases.

### Is i free?

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

### Which has better reviews, ChmPlus Lite or i?

i is rated higher. ChmPlus Lite averages 3.6 out of 5 from 11 ratings, while i averages 5.0 from 1 ratings.

### Do ChmPlus Lite or i have ads?

ChmPlus Lite shows ads; i does not.

### Which is updated more often, ChmPlus Lite or i?

ChmPlus Lite ships an update monthly, and i every 4 months. Most recently, ChmPlus Lite was updated on October 25, 2026 and i on October 6, 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.*