LiquidText vs PDF Highlighter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LiquidText
This app provides a dynamic workspace for reviewing and organizing information from documents and webpages. It allows users to extract key facts, connect ideas across different sources, and annotate content for research, writing, or study.
- Import documents and webpages
- Extract and organize excerpts
- Connect ideas with ink links
- Compare document sections
- Annotate PDFs, Word, and PowerPoint
- Search across all documents
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*** Named “Most Innovative iPad App of the Year” by Apple App Store *** LiquidText offers a fast, natural way to review, gather, and organize information across all your documents and webpages—then apply the results to writing reports, meeting prep, or simply studying. Pull out key facts and connect them together, squeeze a document to compare sections, draw a line to connect ideas in different documents, comment on multiple pages at once, build upon your thoughts, and much more. ► WHAT PEOPLE ARE SAYING: * "If you want to experience the power of going beyond paper, you can download LiquidText" – Cult of Mac * One of Macworld’s Top 24 Apps for iPad Pro * One of Time Magazine's Ten Best apps for iPad Pro * * "There's a better way to organize your research, and the app is it." – iMore, Serenity Caldwell * “All you need for deep research projects.” – Macworld, Jackie Dove * "The world changed with...LiquidText" – Law360, Paul Kiesel * "LiquidText may just be *the* app for reviewing and annotating PDFs using Apple's tablet and stylus." – CIO Magazine, James Martin * “One of the most powerful, original iPad apps I've tried in years” – Federico Viticci, MacStories.net ► LIQUIDTEXT’S COMPLETE FEATURE SET INCLUDES: (Features with * require a paid upgrade.) Import • Create a workspace and import all the documents and web pages you need • Compatible with PDF, Word, and PowerPoint document types • Import from Dropbox, iCloud Drive, Box, email, and more • Import content from webpage or send to LiquidText directly from Safari • Instant OCR to select text in scanned documents; do a full document-OCR to search as well!* • Import documents & metadata directly from reference managers (supports Zotero and Mendeley)* Interact • Pull excerpts from all the documents in your project into the Workspace area • Add your own notes (typed or written) to the Workspace area • Freely draw on your notes, or on the workspace itself* • Organize excerpts and notes into groups • Connect anything - draw live “ink links” that span pages, documents, notes, and more* • Create mind-maps by drawing “ink links” connecting your excerpts/notes to one another * • Get context - tap notes and excerpts to find original source Compare • Pinch a document to compare different distant pages side by side • Collapse text to see annotated parts side-by-side • Collapse text to view search results(s) side-by-side • Import unlimited number of documents into a project, view up to 3 at once* Annotate • Freely draw* or highlight on your document, notes, or the workspace itself • Add margin notes/comments to text, images, notes, and excerpts • Comment on two or more selections simultaneously • Replace document with a newer version (and annotations are brought to new doc)* Search • Search for keywords across all your LiquidText documents • Find keywords in title or text of your documents* • Bulk highlight, tag, or link to your search results* Realtime Collaboration • Invite colleagues into your shared projects and work together in near realtime* • Leave comments and notifications for your collaborators* • Privacy controls: set whether each workspace & document in your project is shared or private* Easy Export • Export your project as a PDF (includes your Workspace and documents) • Export your project as a Word file (converts your notes/excerpts into a linear document) • Send a full LiquidText file for those with the app. • Send files by email or to Dropbox, iCloud Drive, Zotero, and more* Sync & Backup* • Real-time, cross-platform sync • Continuous cloud backup • Multi-device display: • Use your desktop or tablet as additional display for your other device • Use your tablet for freehand inking while viewing and keyboarding on your desktop See our terms of use at https://www.liquidtext.net/terms-of-use Learn more at LiquidText.net | Better Than Paper
PDF Highlighter
Easily edit and highlight text, photos, and documents directly on your phone. This app provides realistic highlighting tools and drawing functions to mark important sections of PDFs and images, allowing you to save and share your annotated files.
- Edit and highlight PDF files and photos
- Use realistic highlighter pen tool
- Freehand drawing with pen, line, arrow, rectangle, and circle tools
- Change drawing tool colors and sizes
- Zoom in/out PDF pages
- Export highlighted PDFs and photos
- Add, delete, or edit PDF pages
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PDF Highlighter, Now easy to highlight important text, add notes, and annotate PDFs with ease. Customize documents using text, signatures, arrows, circles, lines, and colorful markup tools. Draw, edit, and organize your files with professional annotation features designed for work, study, and everyday productivity. Turn any PDF into an interactive and editable document in just a few taps. Easy to read & convert all image formats into PDF files with password security. The complete PDF toolkit for reading, editing, scanning, converting, and managing documents on your iPhone and iPad. Whether you're reviewing contracts, studying notes, filling forms, highlighting important sections, or creating PDFs from photos, PDF Highlighter - Read & Edit gives you everything you need in one powerful and easy-to-use app. Designed for students, professionals, teachers, business users, and anyone who works with documents every day. Now here you can edit PDF files and highlight the important and hide confidential text in PDF files easily. This will help you for protecting your privacy and ensuring confidential information stays hidden. Whether you need to redact personal details from a PDF files or colorise important information in PDF files. ** Key Features - Powerful PDF Editor • Edit and annotate existing PDF documents • Add images to PDF pages or scan to generate PDF files • Save changes as a new copy or replace the original file • Create professional documents on the go - Advanced PDF Highlighter & Annotation Tools • Highlight important text with multiple colors • Add notes and comments • Draw directly on PDF pages • Add custom text anywhere in the document • Insert signatures and initials • Undo and redo changes instantly - Smart PDF Reader • Open and read PDF files quickly • Smooth scrolling and fast page navigation • Search text inside PDFs • Jump directly to any page • Zoom in and out with ease • Recent files for quick access • Open PDF files from other apps • List and Grid view modes • Organize files by folders - Professional Markup Tools • Pen and freehand drawing tools • Multiple pen styles and colors • Adjustable font styles and sizes • Arrow tool • Line tool • Circle and filled circle tools • Shape drawing support • Precision editing with zoom controls • Blur or hide important text information - Scan to PDF • Scan documents using your camera • Create high-quality PDFs from images • Automatic document detection • Save scans in portrait or landscape mode • Perfect for receipts, notes, contracts, invoices, and forms - Image to PDF Converter • Convert photos into PDF documents • Combine multiple images into a single PDF • Rearrange pages before creating PDF • Create professional PDF files in seconds - PDF Conversion Tools • PDF to Word • Word to PDF • Image to PDF • Scan to PDF • PDF to ZIP • Fast and reliable document conversion - PDF Management Tools • Merge multiple PDF files • Compress PDF files to reduce size • Batch compress multiple PDFs • Organize and manage documents easily • Rename, move, and share files - Privacy & Security • Lock PDF files with passwords • Protect sensitive documents • Secure file management • Keep your important files private - Save & Share Anywhere • Export and share PDFs instantly • Share files via email, messaging apps, and more • Print PDF documents directly from your device - Why Choose PDF Highlighter - Read & Edit? • Fast and lightweight • Professional PDF editing tools • Powerful highlighter and annotation features • Complete document management solution • Easy-to-use interface • Perfect for work, study, business, and personal use Download now and take full control of your PDF documents anytime, anywhere. Privacy Policy: https://shadowphotovideoeditorzoneappspolicy.blogspot.com/2024/02/shadow-photo-video-editor-zone-privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: LiquidText at 50% against PDF Highlighter's 0%. LiquidText also leads on rating (4.6 vs 3.0) and update cadence (every 2 weeks vs every 95 months). PDF Highlighter's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases 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. LiquidText sells 13 in-app purchases, starting at $5.49 per month and PDF Highlighter sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
LiquidText holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: LiquidText has 6.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of LiquidText's written reviews are positive against 0% of PDF Highlighter's.
LiquidText ships an update every 2 weeks, PDF Highlighter every 95 months. The most recent releases landed on October 21, 2026 and October 2, 2026 respectively.
| Parameter | LiquidText | PDF Highlighter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (6.4K ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 49.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 6.4K — better | 1 |
| Update frequency | Every 2 weeks — better | Every 95 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 317 MB | 33 MB |
| Age rating | 17+ | 4+ |
| Developer | LiquidText, Inc. | Jaydeep Dhameliya |
Customer experience
LiquidText
PDF Highlighter
Bugs and requests
LiquidText
Reported bugs
5 issues- Frequent crashes and data loss issues
- Inconsistent behavior with Apple Pencil
- Text selection and highlighting problems
- Sync issues between iPad and Mac versions
- Unexpected changes to existing annotations
Requested features
5 requests- Dark mode option
- Improved palm rejection and writing experience
- Better export and sharing options
- Thumbnail/outline view for easier navigation
- Ability to rotate and resize text/image annotations
PDF Highlighter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LiquidText
- LiquidText Live, Monthly, Stu7 Days trial$5.491 Month
- LiquidText Live, Monthly, StPr7 Days trial$5.491 Month
- LiquidText Unlimited, Mo, Stu7 Days trial$10.901 Month
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- LiquidText Live, Monthly7 Days trial$10.901 Month
- LiquidText Live, Monthly, Upg7 Days trial$10.901 Month
- LiquidText Unlimited, Yr, Stu7 Days trial$19.001 Month
- LiquidText Live, Yearly, Stu7 Days trial$54.901 Year
- LiquidText Live, Yearly7 Days trial$99.991 Year
- LiquidText Live, Yearly, Upg7 Days trial$99.991 Year
- LiquidText Unlimited, Yr7 Days trial$189.991 Year
- LT Pro - For Students$19.99
- LiquidText Pro$29.99
- LiquidText Pro II$89.99
PDF Highlighter
- PDF Highlighter Purchase Week$2.997 Days
- PDF Highlighter Purchase Month$9.991 Month
- PDF Highlighter Purchase Year$110.991 Year









