PDF Viewer by Nutrient vs BLK2GO Live
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Viewer by Nutrient
Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.
- View and search PDFs
- Annotate with highlights and notes
- Sign documents digitally
- Fill out PDF forms
- Organize and share documents
- Import from cloud services
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PDF Viewer is a fast and beautiful app, allowing you to view, search, and annotate PDF documents with ease on your iPhone and iPad. Access your files from iCloud, Dropbox, Box, OneDrive, Google Drive or any other cloud solution via Apple's familiar Document Browser interface. +++ Listed as “Productivity lifesaver” on the App Store +++ "A streamlined interface packed with powerful features - it’s like having a desktop-quality PDF toolkit wherever we go" – App Store Editor Notes “I'm impressed by how the folks at PSPDFKit have been able to fine-tune the document browser to the app's needs.” – MacStories.net "If you want a PDF viewer that is designed for reading PDF books, this is it." – App Review VIEW DOCUMENTS ON THE GO • Easily import a PDF from your favorite cloud service provider, email, or directly off a website. • Supports Open In Place, Drag & Drop and features the familiar Apple Document Browser interface from the Files app. • Search for the exact text you are looking for within the document. • Double tap on the screen to Smart Zoom directly to the text you want to read. • Annotate images (JPEG, PNG) non-destructive, just like PDF documents. (PRO) ANNOTATE WITH EASE • While reviewing a document, use your finger or Apple Pencil to highlight and markup text. • Leave comments by adding a note, text, or drawing directly on the PDF. • Add images or audio. • Reply to notes. (PRO) SIGN DOCUMENTS ANYWHERE • Add your signature to any document using your finger or Apple Pencil. • Move and resize your signature as needed. • Flatten a document to ensure the signature doesn’t change. CREATE AND EDIT PDFs • Create new documents from existing documents by moving, rotating, deleting, or adding new pages. • Combine multiple documents into a single one. (PRO) • Add bookmarks to easily return to certain pages in large documents. FILL OUT FORMS • Quickly fill out PDF Forms by adding text to the fields. • Flatten and secure the form once you’re done to ensure the document doesn’t change. • Add a signature to any Form. STORE, ORGANIZE AND SHARE • Store documents, create folders and organize your documents. • Share documents by printing, emailing or saving your edits back any cloud service. PASSWORD PROTECT DOCUMENTS • Read document metadata, title and keywords. • Protect documents with user and owner passwords and limit permissions. (PRO) AND SO MUCH MORE • Conveniently switch to night mode when viewing your documents at night. • Present on external screens without the distraction of toolbars. (PRO) • Have the text from a PDF read out loud to you with text-to-speech. • PDF Viewer remembers where you were down to the page/position where you left off - even across devices. PRICING PDF Viewer comes with a large feature set, completely free. Some advanced features require the purchase of PDF Viewer Pro, available as a subscription. We offer 3-monthly and yearly subscription plans. There’s also a fully functional 7-day trial, so you can test PDF Viewer Pro (including document merging and password editing) before you commit. All plans unlock the app on iPhone and iPad. TRUSTED BY COMPANIES YOU KNOW PDF Viewer is built on top of and powered by PSPDFKit, the same PDF engine trusted around the world by companies like Dropbox, Box, IBM, Atlassian, SAP, and Lufthansa. BE PART OF THE PDF VIEWER COMMUNITY pdfviewer.io twitter.com/pdfviewerapp LEGAL Duration and price of each subscription are displayed in PDF Viewers’ storefront, updated at the time of purchase. Payment will be charged to iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off no later than 24 hours before the end of the current period. Subscriptions and auto-renewal can be managed/turned off in the iTunes account settings. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. Terms of Use: https://pdfviewer.io/terms Privacy Policy: https://pdfviewer.io/privacy
BLK2GO Live
Visualize 2D and 3D scans in real-time with high-resolution images. Monitor device status like battery and storage. Manage and view existing scans directly from your mobile device.
- Live 2D and 3D scanning visualization
- High-resolution image capture
- Device status monitoring (battery, storage)
- Image visualization of existing scans
- Scan management
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Use the BLK2GO Live app to connect to your Leica BLK2GO. The app can be used to provide: Live 2D and 3D visualization while scanning as well as high-resolution images. Device status, such as battery or storage. Image visualization and management of existing scans.
Screenshots
Verdict
The clearest difference is rating: PDF Viewer by Nutrient at 4.6 against BLK2GO Live's 4.0. PDF Viewer by Nutrient also leads on ratings volume (9.1K vs 4) and update cadence (monthly vs every 5 months). BLK2GO Live's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 74%). On price and ads 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. PDF Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months. BLK2GO Live asks for nothing beyond the download.
PDF Viewer by Nutrient holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: PDF Viewer by Nutrient has 9.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 74% of PDF Viewer by Nutrient's written reviews are positive against 100% of BLK2GO Live's, so the app with the better star average is not the one people write more warmly about.
PDF Viewer by Nutrient ships an update monthly, BLK2GO Live every 5 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | PDF Viewer by Nutrient | BLK2GO Live |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9.1K ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 73.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 9.1K — better | 4 |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPod |
| Requires iOS | 17.0 | 12.1 — better |
| Further details — not scored | ||
| Size | 112 MB | 225 MB |
| Age rating | 4+ | 4+ |
| Developer | PSPDFKit GmbH | Leica Geosystems AG |
Customer experience
PDF Viewer by Nutrient
BLK2GO Live
Bugs and requests
PDF Viewer by Nutrient
Reported bugs
4 issues- Annotations randomly disappearing or not saving
- Incompatibility issues with certain PDF files
- Scrolling and panning problems on large PDFs
- Unexpected crashes after iOS updates
Requested features
5 requests- Add a rubber/eraser tool for annotations
- Implement a side-by-side PDF view mode
- Improve palm rejection and gesture support
- Allow customization of toolbar and shortcuts
- Provide better options for PDF file management
BLK2GO Live
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDF Viewer by Nutrient
- PDF Viewer Pro 3 Months7 Days trial$6.993 Months
- PDF Viewer Pro Yearly7 Days trial$19.991 Year
BLK2GO Live
No in-app purchases
Questions
Is PDF Viewer by Nutrient free?
Is BLK2GO Live free?
Which has better reviews, PDF Viewer by Nutrient or BLK2GO Live?
Do PDF Viewer by Nutrient or BLK2GO Live have ads?
Which is updated more often, PDF Viewer by Nutrient or BLK2GO Live?
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