PDF Viewer by Nutrient vs inspectX
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
inspectX
Streamline infrastructure inspections with this mobile tool. It enables seamless data collection and reporting, even offline, eliminating the need for separate cameras and manuals. Designed for efficiency and compliance, it reduces errors and saves significant time on each inspection.
- Offline inspection capability
- SNBI standards support
- GIS interface for site navigation
- Speech-to-text documentation
- Tablet camera integration for photos
- Sketching and photo markup
- Data validation and color-coding
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Welcome to inspectX! Simplify and streamline your bridge and infrastructure inspections with inspectX MultiAsset, the essential tool from AssetIntel going hand-in-hand with the inspectX web platform. No matter what mobile device you’re on, this versatile Field Module ensures seamless data collection and management, even offline. inspectX stands out by eliminating the need for additional equipment like digital cameras, inspection reports, and work manuals. Its intuitive interface makes inspection and reporting effortless, reducing errors and eliminating unnecessary field visits. Compliant with regulatory standards and designed to transition smoothly from NBI to SNBI standards, inspectX saves time and cuts costs, enhancing the efficiency of your inspections. Simply identify your scheduled inspections, download the workflows, conduct inspections, and upload detailed reports - all hassle-free! Key Features include: • Offline Capability: Perform field inspections without needing an internet connection. • SNBI: Support for the latest standards in bridge inspections. • GIS Interface: Navigate to your inspection site smoothly and punctually. • Speech-to-Text: Easily document inspections by speaking. • Tablet Camera Integration: Capture high-resolution photos directly in the app, associating them with defects, elements, or NBI items in real time. • Sketch Tab: Easily draw field sketches or import and mark up inspection photos to highlight dimensions and deficiencies. • Data Validation and Color-Coding: Ensure accurate data entry through a self-guided interface with robust error checking. • NBI/SNBI Coding Guide and AASHTO Manual: Get the guidance you need for accurate assessments. • Save Time: Eliminate office data entry, saving 1-4 hours per inspection. Join countless inspectors and agencies who rely on inspectX for efficient, effective infrastructure inspections anytime, anywhere. inspectX Powered by AssetIntel.
Screenshots
Verdict
The clearest difference is in-app purchases: inspectX at none against PDF Viewer by Nutrient's 2. inspectX also leads on review sentiment (100% vs 74%). PDF Viewer by Nutrient's advantage is ratings volume (9.1K vs 36) and device support (4 vs 2). On price, rating, update cadence 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. inspectX asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for PDF Viewer by Nutrient against 4.7 for inspectX. That said, the two scores are not equally well evidenced: PDF Viewer by Nutrient has 9.1K ratings behind it against 36, so its average is the more settled of the two. Written reviews are what separate them: 74% of PDF Viewer by Nutrient's written reviews are positive against 100% of inspectX's.
PDF Viewer by Nutrient ships an update monthly, inspectX fortnightly. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.
| Parameter | PDF Viewer by Nutrient | inspectX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9.1K ratings) | 4.7 (36 ratings) — better |
| Positive reviews | 73.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 9.1K — better | 36 |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 112 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | PSPDFKit GmbH | Bridge-Intelligence |
Customer experience
PDF Viewer by Nutrient
inspectX
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
inspectX
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
inspectX
No in-app purchases
Questions
Is PDF Viewer by Nutrient free?
Is inspectX free?
Which has better reviews, PDF Viewer by Nutrient or inspectX?
Do PDF Viewer by Nutrient or inspectX have ads?
Which is updated more often, PDF Viewer by Nutrient or inspectX?
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