CHM Sharp vs KF Lounge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHM Sharp
This app is a reader for CHM (Microsoft Compiled HTML Help) documents on iOS devices. It allows for file management, searching within documents, and various viewing options. Transfer files easily via Wi-Fi or iTunes.
- CHM document reader
- File sorting and searching
- File management (copy, move, delete)
- Wi-Fi and iTunes file transfer
- In-document search and highlighting
- Pinch-to-zoom support
- Bookmark functionality
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CHM Sharp is CHM (Microsoft Compiled HTML Help) document / ebook reader for iPad, iPhone and iPod touch. * Sorting by file name、create time and file size * Search file(folder) name * View, copy, move, delete, rename, email, zip Compression and unzip files/folders * Extract chm files from compressed .zip/.rar file * Glide deleting function * Transferring files by wifi and itunes file sharing * Email multiple files, folder Supported * catalog view/search、index view/search * full-text、title search, Highlight show * auto detect Text encoding * support bookmarks * Supports pinch to zoom * select all and cancel all * open files from other app * Support all orientations * Universal app
KF Lounge
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KF Lounge is a technical discussions and Q&A platform built on the popular forum software, Discourse.
Screenshots
Verdict
The clearest difference is in-app purchases: KF Lounge at none against CHM Sharp's 1. KF Lounge also leads on ads (none vs shown) and update cadence (every 2 months vs every 4 months). On price, device support and iOS requirement 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
Both are free to download. CHM Sharp sells 1 one-off in-app purchase. KF Lounge asks for nothing beyond the download.
CHM Sharp ships an update every 4 months, KF Lounge every 2 months. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.
| Parameter | CHM Sharp | KF Lounge |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (11 ratings) — better | — |
| Positive reviews | 67.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 25 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | 锦文 游 | KodeFox, Inc. |
In-app purchases
CHM Sharp
- Full Version$0.99
KF Lounge
No in-app purchases
