PDF Reader vs UniSign
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader
This app offers a superior PDF reading experience with its innovative Liquid Mode, which optimizes documents for mobile screens. It also provides robust tools for annotating, signing, managing, and sharing your PDF files, catering to both work and study needs.
- Liquid Mode for optimized mobile reading
- Annotation tools (pencil, text, highlighting)
- Handwritten signature insertion
- File management (move, merge, copy, delete)
- Cloud service integration (Wondershare, iCloud)
- Create blank PDFs and folders
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PDFelement - PDF Reader is a PDF reader using the latest technology. The newly connected Liquid Mode function allows you to enjoy the best reading experience. In addition, there are various annotation tools, file management, signature, Various functions such as cloud services can meet your PDF needs in work and study. PDF VIEWER • Liquid Mode gives you the best PDF reading experience • Star files to find them quickly • Easily locate recently accessed files in the "Recent" list. • Enter the page number to navigate to the desired page for viewing LIQUID MODE • Get the best PDF Reading experience with Liquid Mode • PDF document fully fits the mobile phone screen, no need to zoom in and out repeatedly. • Easily adjust brightness, font size,style, and spacing. ANNOTATE • Using Pencil to annotate like writing on the paper • Add text annotations, freely modify the text and background, border colors, choose the appropriate font and font size. • Supports many annotating tools like highlighting, underlining, squiggly lines, or strikethroughs. MANAGE • Move, merge, copy or delete files SIGNATURE • Enables handwritten signatures to be inserted anywhere within the document, while also offering the ability to zoom in and out for greater flexibility. • Built-in commonly used stamps CREATE • Quickly create completely blank PDF documents • Creat blank folders. SHARE • Sharing document content with others is just a click away with capture feature. • Select sentence(s) or pragraph(s) to share CLOUD SERVICE • PDF Reader supports uploading or downloading docs via computer, Wondershare document cloud and iCloud. Please note that this app only supports editing native PDF files. It does not support editing scanned or raster PDF. If you find you cannot edit text in PDF, please check if it is scanned PDF. Thank you! ---------------------------------------------------------------------------------------- Need HELP? Please contact us! We'll feedback to you ASAP. Email: pdfelement@wondershare.com Support Center: http://support.wondershare.com Forum: http://forum.pdf.wondershare.com Official Website: https://pdf.wondershare.com If you think this App helps you, your positive review in the App Store would be much appreciated.
UniSign
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Take ownership of your digital life with UniSign, the secure identity platform designed to give you full control over your personal data. Manage access, monitor activity, and maintain complete transparency over your digital footprint — all in one place. Secure Identity Management Create and manage your verified digital identity with confidence. • Build your secure digital profile • Safely store personal documents and credentials • Access your identity anytime, anywhere • Update your information quickly and easily Total Control Over Your Data You decide who sees your information — and when. • Grant or revoke access instantly • View all organizations connected to your profile • Maintain full ownership of your data • Share information securely and selectively Real-Time Transparency Know exactly how and when your data is used. • Track every access request in real time • View detailed activity logs • Receive full visibility into data interactions • Stay informed with complete audit trails Verified & Secure Registration Built with trusted verification standards. • Secure onboarding with identity verification • Integration with trusted verification systems • Class-based identity levels for enhanced protection • Powered by Finevos SDK authentication Backup & Recovery Your identity is always protected. • Automatic secure backups • Easy data restoration • Safe cloud storage • Never lose important credentials Smart Notifications Stay informed at every step. • Instant alerts for access requests • Real-time updates on data usage • Notifications for important changes • Full visibility into your digital identity Privacy First. Always. UniSign is built around privacy and security. Your information is encrypted using industry-grade protocols, and you remain in full control of who can access your data. Transparency and protection are at the core of everything we do.
Screenshots
Verdict
The clearest difference is device support: PDF Reader at 3 against UniSign's —. PDF Reader also leads on iOS requirement (15.0 vs 18.5). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PDF Reader | UniSign |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3.9K ratings) — better | — |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 3.9K — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 173 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Wondershare Technology (Hunan) Co.,Ltd. | DW Dynamic Works Ltd |
Bugs and requests
PDF Reader
Reported bugs
4 issues- Text boxes appearing randomly
- Inability to select/edit text in some PDFs
- Scrolling issues and page loading delays
- Incompatibility with certain PDF formats
Requested features
5 requests- Ability to edit text formatting (font, size, color)
- Support for multiple open documents
- Improved Apple Pencil integration
- Bookmark/favorite feature for frequently used PDFs
- Expanded cloud storage integration (OneDrive, Google Drive, etc.)
UniSign
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDF Reader
No in-app purchases
UniSign
No in-app purchases









