Comparison

ChmPlus Lite vs Highlights

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

Head to head
About

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.

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
Read full description

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/

About

Highlights

This app is a fast and lightweight PDF reader designed for research. It allows users to read, highlight, and annotate documents, and then extract this information into organized notes. Advanced features include table data extraction, text recognition, and smart copying of annotations into various formats.

Highlights
  • Read and browse PDF documents
  • Highlight, underline, and strikethrough text
  • Add comments and sticky notes
  • Extract annotations into organized notes
  • Convert table data and recognize text
  • Smart copy annotations to various formats (CSV, BibTex)
  • Lookup citation metadata and DOI links
Features
Read full description

"... an app that students, academics, and anyone who does substantial amounts of PDF-based research should try" - Macstories.net "It’s the novel approach to PDF annotation that makes this app a cut above the rest"- TapSmart.com *** "App of the Day" - App Store, US *** USE HIGHLIGHTS FOR FREE Highlights is a fast and lightweight PDF reader (under 10MB) packed with features to help you do your best research. Free users have access to standard PDF reader features including document browsing, reading and annotating. There are NO ADS, time limits or tracking. READ PDF DOCUMENTS • Open PDF documents from anywhere • Browse files using the familiar document browser • Open PDFs in Single Page or Two Page scroll mode • Double tap to Smart Zoom in on a paragraph or figure • Scrub smoothly to the desired page • Search the entire document in an instant • Navigate using any connected keyboard or mouse STORE YOUR FILES WHERE YOU WANT • Full support for "Open In Place" lets you make edits to the file where it is • Access your files from iCloud Drive, Dropbox, Google Drive, OneDrive or Box using the document browser • Or keep them privately on device only HIGHLIGHT AND ANNOTATE FASTER • Select text with your finger, Apple Pencil or mouse pointer • Highlight, underline, strikethrough text and make image selections • Add comments to annotations or as individual sticky notes • Annotate with fewer taps using context aware popovers • Default annotation colors prevents you from having to repeatedly setting the color for the same type of annotation every time TURN ANNOTATIONS INTO NOTES • As you markup text and images the contents are extracted and sorted into notes • Customize the formatting and contents of your notes • Sort the annotations chronologically or create your own color coding EXTRACT TABLE DATA AND RECOGNIZE TEXT • Convert images containing text or tables to actual text and tables using machine learning - letting you get to the underlying data with a single tap SMART COPY Copy annotations to the desired format with one tap: • Text markup as text • Image selections as images • Tables as CSV • Citations as BibTex LOOKUP CITATIONS • Highlights will fetch DOI-links and metadata • Markup any reference and tap the link icon to look it up • If you have read the work already or have it in your reference manager library, Highlights will link you to it EXPORT ANYWHERE • Save or share your notes as portable files: Markdown, TextBundle, HTML, WebArchive or PDF • Share them to your favorite notes app: Apple Notes, Bear, Craft, Evernote, DEVONThink, Keep It, MindNode, Notion, Obsidian, Roam Research or Ulysses • Or send them to a colleague via mail. It's your notes, you decide where they go MUCH MORE • Dark mode • Multi-window support on iPadOS • Keyboard shortcuts and navigation • Support for system Copy and Undo gestures • Alternative app icons • Custom accent colors • Apple Pencil double-tap gestures • Power annotation tools For a full list of features see: highlightsapp.net/features HIGHLIGHTS PRO The Highlights Pro subscription unlocks advanced features on your iPhone, iPad and Mac: • Export options for other apps and easily editable formats • Extract information using table and text recognition • Customize accent colors and alternative app icons • Power annotation tools • Citation lookups • Smart Copy Highlights Pro includes a 14-day free trial. You can cancel your subscription at any time. The subscription will automatically renew unless auto-renew is turned off within 24-hour prior to the end of of the current period. Payments will be charged to your iTunes account and your account will be charged within 24-hours prior to the end of the current period. Any unused portion of a free trial period will be forfeited when you purchase a subscription. For more information about Highlights Pro: highlightsapp.net/pro Privacy Policy: highlightsapp.net/privacy Terms of Use: highlightsapp.net/terms

Screenshots

ChmPlus Lite4 screens
Highlights4 screens

Verdict

The call

The clearest difference is rating: Highlights at 4.5 against ChmPlus Lite's 3.6. Highlights also leads on ads (none vs shown) and ratings volume (1.6K vs 11). ChmPlus Lite's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 15.0). On price, review sentiment, update cadence and monetization model 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. Highlights sells 3 in-app purchases, starting at $4.99 per month. ChmPlus Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Highlights holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Highlights 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 53% of Highlights's.

UpkeepUpdate frequency

ChmPlus Lite ships an update monthly, Highlights fortnightly. The most recent releases landed on August 30, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
ChmPlus Lite versus Highlights: the parameters behind the verdict, then further details
ParameterChmPlus LiteHighlights
PriceFreeFree
Rating3.6 (11 ratings)4.5 (1.6K ratings) — better
Positive reviews49.3% of reviews53.3% of reviews — better
Number of ratings111.6K — better
Update frequencyMonthlyFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.0 — better15.0
Further details — not scored
Size13 MB37 MB
Age rating4+4+
Developer兰桂 吴Jonas Myren Ribe

Customer experience

ChmPlus Lite

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews73 reviews
Positive49.3%
Neutral13.7%
Negative37.0%

Highlights

All ratings1,610 ratings
Positive88.2%
Neutral3.7%
Negative8.1%
Written reviews465 reviews
Positive53.3%
Neutral15.3%
Negative31.4%

Bugs and requests

ChmPlus Lite

Not enough reviews yet to summarise bugs or requests.

Highlights

Reported bugs

5 issues
  • Highlights and annotations randomly disappearing
  • Text selection issues, especially with footnotes
  • Compatibility problems with certain PDF files
  • Syncing issues across devices
  • Export functionality not working as expected

Requested features

5 requests
  • Add handwriting and freeform annotation support
  • Implement a table of contents or bookmarking feature
  • Allow editing of notes directly in the app
  • Provide a one-time purchase option instead of subscription
  • Improve search capabilities with visual results and navigation

In-app purchases

None

ChmPlus Lite

No in-app purchases

3 purchases

Highlights

Subscriptions3
  • Highlights Pro: Monthly$4.991 Month
  • Highlights Pro14 Days trial$29.991 Year
  • Highlights Pro: Legacy Upgrade1 Year trial$29.991 Year

Questions

Is ChmPlus Lite free?
ChmPlus Lite is free to download, with no in-app purchases.
Is Highlights free?
Highlights is free to download, with in-app purchases available.
Which has better reviews, ChmPlus Lite or Highlights?
Highlights is rated higher. ChmPlus Lite averages 3.6 out of 5 from 11 ratings, while Highlights averages 4.5 from 1.6K ratings.
Do ChmPlus Lite or Highlights have ads?
ChmPlus Lite shows ads; Highlights does not.
Which is updated more often, ChmPlus Lite or Highlights?
ChmPlus Lite ships an update monthly, and Highlights fortnightly. Most recently, ChmPlus Lite was updated on August 30, 2026 and Highlights on September 22, 2026.

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