ChmPlus Lite vs Speech Central
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChmPlus Lite
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.
- 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
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ChmPlus Reader (CHM+) is a feature-rich CHM (Microsoft Compiled HTML Help) document/ebook reader for iPhone/iPad. ChmPlus Reader now supports passcode lock! CHM/EPUB Document Support: • Highlight / bookmark / annotation • Search (find on page & document-wide search) • Open CHM files instantly (even with huge files) • Supports CHM files in different languages • Supports pinch to zoom • Navigate through table of contents • Supports full screen mode • Supports auto rotation and orientation lock • Long press on an image to: 1) save the image to photo album 2) copy the image to clipboard (and paste it into your email) • Night mode (white text on black background) File Management: • Transfer files via Wi-Fi (FTP & HTTP) / iTunes File Sharing • Create/copy/move/rename/delete files and folders • Passcode lock • Support opening document with other applications • Import documents from other applications • Create/edit text documents • Send multiple Email attachments • Create .zip archives • Save image to Photos • Browse and manage remote files (FTP/FTPS, SFTP and WebDAV) Supported File Types: • .chm (Microsoft Compiled HTML Help) • .epub (electronic publication) • MS Office - .doc, .ppt., .xls, .docx, .xlsx, .pptx • iWork '08/'09 (Pages, Numbers, Keynote) • PDF, HTML, RTF, .mht, Safari webarchives and text files • .zip, .rar, .7z, .bz2, .gz, .tar and various other archive file types • High resolution images • Audio and video ==SUPPORT== - https://langui.net/chmplus/
Speech Central
This app transforms text from various documents and web pages into speech, offering a distraction-free reading experience. It supports numerous file formats and provides customizable voices, including offline and AI options. Designed for productivity and accessibility, it syncs across Apple devices and offers study tools.
- Optimized PDF & Web Reading
- Broad Document Support (PDF, EPUB, DOCX)
- Offline and Cloud AI Voices
- Cross-device Sync
- CarPlay & Apple Watch Support
- Accessibility Profiles
- Annotation and Export Tools
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Speech Central has been built for focused, serious reading since 2014. It works across PDFs, web articles, books, and documents. Designed for productivity and accessibility, it combines powerful controls, deep customization, and seamless integration across Apple devices. No subscription. A one-time upgrade unlocks unlimited use. Free access is available for blind users with VoiceOver and for schools deploying the app through Apple School Manager. READING WITHOUT DISTRACTIONS Optimized PDF & Web Reading • Accurate reading order and navigation • Optional cleanup to reduce distractions such as headers, footnotes, citations, and links • RSS support and easy sharing from Safari and other apps Broad Document Support • PDF (including scanned PDFs with two-column layout) • EPUB • Word (.docx) • PowerPoint (.pptx) • OpenOffice formats • HTML, TXT, RTF, Markdown, and more VOICES: OFFLINE AND CLOUD AI • Use high-quality Apple system voices offline • Supports compatible system-wide voices from third-party apps, including offline neural voices from Piper - Neural TTS and ToBe SAID (Pocket TTS) apps • Connect cloud AI voices (OpenAI-compatible APIs, Microsoft Azure, Google Cloud, xAI) using your own API keys • Proprietary enhancement layer improves realism and streaming playback • Optional AI summarization tools help you review content more efficiently BUILT FOR THE APPLE ECOSYSTEM • Sync reading position and playlists across iPhone, iPad, and Mac • CarPlay support for listening and control in your vehicle • Independent Apple Watch app — listen without your iPhone nearby • Optional Health integration to track mindful listening time ACCESSIBILITY FIRST • Dedicated profiles for ADHD, dyslexia, and low vision • Interface and reading behavior adapt for reduced distraction and improved comprehension • Fully accessible with VoiceOver STUDY & KNOWLEDGE TOOLS • Annotate while reading • Export annotated text to .docx • Export text to audio files for offline listening PRIVACY BY DESIGN • No ads • No tracking • No usage analytics WHO USES SPEECH CENTRAL • Students and researchers • Professionals converting reading into listening time • Users who rely on assistive reading tools • Anyone who prefers distraction-reduced, hands-free reading Notes: - Free version limited by the number of daily articles; unlimited access available with Pro upgrade. - Some features require the latest OS version. - License is valid only on iOS/watchOS; separate licenses required for other platforms. - DRM-protected books (e.g. Kindle) are incompatible. - AI features may occasionally perform unexpectedly.
Screenshots
Verdict
The clearest difference is rating: Speech Central at 4.6 against ChmPlus Lite's 3.6. Speech Central also leads on ads (none vs shown) and ratings volume (1.6K vs 11). ChmPlus Lite's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 17.0). On price, monetization model and device support 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. Speech Central sells 1 one-off in-app purchase. ChmPlus Lite asks for nothing beyond the download.
Speech Central holds the better App Store score, 4.6 against 3.6. That said, the two scores are not equally well evidenced: Speech Central has 1.6K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 49% of ChmPlus Lite's written reviews are positive against 70% of Speech Central's.
ChmPlus Lite ships an update monthly, Speech Central weekly. The most recent releases landed on August 30, 2026 and September 24, 2026 respectively.
| Parameter | ChmPlus Lite | Speech Central |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (11 ratings) | 4.6 (1.6K ratings) — better |
| Positive reviews | 49.3% of reviews | 69.6% of reviews — better |
| Number of ratings | 11 | 1.6K — better |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV, Apple Watch — better |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | 兰桂 吴 | Labsii |
Customer experience
ChmPlus Lite
Speech Central
Bugs and requests
ChmPlus Lite
Not enough reviews yet to summarise bugs or requests.
Speech Central
Reported bugs
6 issues- Crashes when changing advanced settings
- Inconsistent behavior when importing documents
- Fails to recognize some file formats
- Playback issues with high-speed mode
- Repeating chapters unexpectedly
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- Scrolling issues with long documents
Requested features
8 requests- Add more natural-sounding voices
- Improve chapter/section navigation
- Allow custom pronunciation of words
- Add support for more languages
- Integrate with Bookshare library
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- Improve PDF formatting and layout
- Add more customization options
- Improve sync between devices
In-app purchases
ChmPlus Lite
No in-app purchases
Speech Central
- Speech Central Pro$9.99
Questions
Is ChmPlus Lite free?
Is Speech Central free?
Which has better reviews, ChmPlus Lite or Speech Central?
Do ChmPlus Lite or Speech Central have ads?
Which is updated more often, ChmPlus Lite or Speech Central?
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